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                    gptContextualInit_Debug = 'Not enabled outside of Production';
                    break;
                case "CELLJOURNAL":
                case "CELLBUCKET":
                    gptContextualReady_Debug = 'Not enabled on Cell';
                    gptContextualInit_Debug = 'Not enabled on Cell';
                    gptContextualURL_Debug = 'Not enabled on Cell';
                    break;
            }
            gpt_InitAds();
        }
    }
    //--------------------------------------------------------------------------
    function GPT_GetPageByURL() {
        var host = window.location.host.toLocaleLowerCase()
        var localpath = window.location.pathname.toLocaleLowerCase();

        ///Check for Cell.com
        if (host.indexOf('cell.com') >= 0) {
            return null;
        }

        ///Check for Cell.com (marlin-stag)
        if (host.indexOf('www-cell-com') >= 0) {
            return null;
        }

        ///Check for Lancet
        if (host.indexOf('thelancet') >= 0) {
            return null;
        }

        if (localpath.indexOf('/article/') >= 0) {
            return 'article.fulltext';
        }

        if (localpath.indexOf('/action/dosearch') >= 0) {
            return 'search.searchResults';
        }

        if (localpath.indexOf('/content/') >= 0) {
            return 'periodical.editorial';
        }

        return 'periodical.home';
    }
    //--------------------------------------------------------------------------
    function gpt_CheckForNULL(x, valueifnull) {
        if (typeof valueifnull == "undefined") {
            valueifnull = null;
        }

        if (typeof x == 'undefined') {
            return valueifnull;
        }
        if (x == null) {
            return valueifnull;
        }
        if (x == "null") {
            return valueifnull;
        }
        if ($.trim(x) == '') {
            return valueifnull;
        }

        return x;
    }
    //--------------------------------------------------------------------------
    function gpt_GetAdditionalTargeting() {
        //adds page level targeting of custom variables
        //the id (minus gpt) and the value will be used as a key-value pair
        //eg: <input type="hidden" id="gptissuepii" value="x" class="gpt-Target">
        //eg: target issuepii=x
        $(".gpt-Target").each(function (index) {
            var gptTargetId = $(this).attr('id');
            gptTargetId = gptTargetId.replace('gpt', '').toLowerCase();
            if (gptTargetId !== '') {
                gpt_Target(gptTargetId);
            }
        })
    }
    //--------------------------------------------------------------------------
    function gpt_GetQuerystring(key, default_) {
        //function to read querystring variables
        if (default_ === null) default_ = '';
        key = key.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
        var regex = new RegExp("[\\?&]" + key + "=([^&#]*)");
        var qs = regex.exec(window.location.href);
        if (qs === null)
            return default_;
        else
            return qs[1];
    }
    //--------------------------------------------------------------------------
    function gpt_GetDFPTestId() {
        //Get any request for a test id from querystring and set custom targeting parameter
        var gptDFPTestId = gpt_GetQuerystring('dfptestid', '');
        if (gptDFPTestId !== '') {
            $('#gpt-Variables').append('<input type="hidden" id="gptDFPTestId">');
            $('#gptDFPTestId').val(gptDFPTestId);
            gpt_Target("DFPTestId");
        }
    }
    //--------------------------------------------------------------------------
    function gpt_Target(targetName) {
        //Set page level target if value is found
        if ($('#gpt' + targetName).length > 0) {
            var targetValue = $('#gpt' + targetName).val();

            if (targetValue !== '') {
                targetValue = targetValue.replace(/[^-a-z0-9]/ig, '');	//Only Allow a-z, 0-9
                googletag.pubads().setTargeting(targetName.toLowerCase(), targetValue.toLowerCase());
                gptCustomTargeting_Debug = gptCustomTargeting_Debug + targetName.toLowerCase() + ' = ' + targetValue.toLowerCase() + '<br>';
            }
        }
    }
    //--------------------------------------------------------------------------
    function gpt_TargetAccessType() {
        var currentAccessType = $('#gptAccessType').val();
        if (typeof currentAccessType == "undefined") {
            currentAccessType = "";
        }
        if (currentAccessType.indexOf('ANON_IP') >= 0) {
            googletag.pubads().setTargeting("loggedin", "yes");
        }
        else {
            gpt_Target("LoggedIn");
        }
    }
    //--------------------------------------------------------------------------
    async function gpt_PreTearsheet(adTypeId) {
        if (typeof adTypeId === "undefined") {
            adTypeId = 0;
        }
        //Remove Elsevier Cookie Policy Notice
        if ($("#onetrust-consent-sdk").length > 0) {
            $("#onetrust-consent-sdk").remove();
        }

        //Mobile Nav
        $('#skip').remove();
        $('skipNavigationLink').remove();

        //JBS Modals
        if ($('.leadinModal').length > 0) {
            $('.leadinModal').remove();
        }
        if ($('.leadinModal').length > 0) {
            $('.leadinModal').remove();
        }
        if ($('.usabilla__overlay').length > 0) {
            $('.usabilla__overlay').remove();
        }

        //Pendo
        if ($('._pendo-step-container').length > 0) {
            $('._pendo-step-container').remove();
        }
        if ($('._pendo-guide-tt_').length > 0) {
            $('._pendo-guide-tt_').remove();
        }
        if ($('._pendo-image').length > 0) {
            $('._pendo-image').remove();
        }
        if ($('._pendo-badge-image').length > 0) {
            $('._pendo-badge-image').remove();
        }

        switch (gpt_AdFile) {
            case "CELLJOURNAL":
            case "CELLBUCKET":
                //Mobile Bug Fix on Cell
                if (parseInt(adTypeId) == 5) {
                    $('.widget-horizontalAd').css('position', 'static');
                    $('.body-horizontalAd').css('display', 'block');
                }
                break;
            case "JBS":
            case "LANCET":
                objLeaderboard = ".container-leaderboard";
                offset = 53;
                switch (parseInt(adTypeId)) {
                    case 3: //MPU
                    case 4: //SkyScraper
                        //BUGFIX: Show Sidebar ad for JBS
                        //skyscraper & mpu
                        if ($('.widget-verticalAd').length > 0) {
                            $('.widget-verticalAd').css('display', 'block');
                        }
                        $('#backgroundLayer').css('display', 'none');   //Hide any Prestitial
                        break;
                    case 6:     //Prestitial
                        $('#backgroundLayer').css('display', 'block');
                        break;
                    default:
                        $('#backgroundLayer').css('display', 'none');   //Hide any Prestitial
                        break;
                }
                break;
        }
    }
    //--------------------------------------------------------------------------
    function gpt_Sleep(ms) {
        return new Promise(resolve => setTimeout(resolve, ms));
    }
    //--------------------------------------------------------------------------
    async function gpt_ScrollToAd(adTypeId) {
        if (typeof adTypeId === "undefined") {
            adTypeId = 0;
        }
        var adId = "";
        var offset = 0;
        var objLeaderboard = "";
        var gpt_ScrollToAd = true;

        switch (gpt_AdFile) {
            case "PU": //PracticeUpdate
                var hideOtherAds = true;
                $('#modalPrestitial').modal('hide');
                $('.jumbotron-welcome').hide();
                objLeaderboard = ".container-leaderboard";
                offset = 53;
                switch (parseInt(adTypeId)) {
                    case 2:
                        //LeaderBoard, no Scroll Needed
                        gpt_ScrollToAd = false;
                        adId = "adSlot1";
                        break;
                    case 3:
                        //MPU
                        adId = "adSlot2";
                        break;
                    case 4:
                        //SkyScraper
                        adId = "adSlot3";
                        $('.most-read').hide();
                        break;
                    case 5:
                        //Mobile, no Scroll Needed
                        gpt_ScrollToAd = false;
                        adId = "adSlot1";
                        break;
                    case 6:
                        //Interstitial
                        gpt_ScrollToAd = false;
                        adId = "adSlot15";
                        await gpt_Sleep(1000);
                        $(objLeaderboard).hide();
                        $('#modalPrestitial').unbind();
                        $('#modalPrestitial').modal();
                        break;
                    case 7:
                        //Native Ad
                        break;
                    case 10:
                        //Master Companion
                        hideOtherAds = false;
                        gpt_ScrollToAd = false;
                        break;
                    default:
                        //Unknown Ad Type
                        gpt_ScrollToAd = false;
                        adId = "adSlot1";
                        break;
                }
                if (hideOtherAds) {
                    //Hide all other ads
                    $('.ad-container').each(function (i, obj) {
                        if (this.id !== adId) {
                            var tempParent = this.id;
                            tempParent = tempParent.replace("adSlot", "adParent");
                            $("#" + tempParent).addClass('hide');
                        }
                    });
                }
                break;
            case "JBS":
                objLeaderboard = ".js__adToHide";
                offset = 80;
                switch (parseInt(adTypeId)) {
                    case 2:
                        //Leaderboard
                        gpt_ScrollToAd = false;
                        $(".widget-verticalAd").hide();
                        break;
                    case 5:
                        //Mobile
                        //Scroll to Top
                        gpt_ScrollToAd = false;
                        break;
                    case 3: //MPU
                    case 4: //SkyScraper
                        $(objLeaderboard).hide();
                        adId = $('.gpt-ad-defined[data-adsize="sidebar"').attr('id');
                        break;
                    case 10:
                        //MasterCompanion
                        gpt_ScrollToAd = false;
                        break;
                    case 13:	    //Phone - Portrait
                    case 14:        //Phone - Landscape
                        $(objLeaderboard).hide();
                        offset = 60;
                        adId = 'gpt-Interscroller';
                        gpt_ScrollToAd = true;
                        break;
                    default:
                        //Unknown Ad Type
                        gpt_ScrollToAd = false;
                        break;
                }
                break;
            case "CELLJOURNAL":
            case "CELLBUCKET":
                objLeaderboard = ".js__adToHide";
                offset = 260;
                switch (parseInt(adTypeId)) {
                    case 2:
                        //Leaderboard
                        gpt_ScrollToAd = false;
                        $('.body-verticalAd').hide();
                        break;
                    case 5:
                        //Mobile
                        //Scroll to Top
                        gpt_ScrollToAd = false;
                        break;
                    case 3: //MPU
                    case 4: //SkyScraper
                        $(objLeaderboard).hide();
                        adId = $('.gpt-ad-defined[data-adsize="boombox"').attr('id');
                        break;
                    case 10:
                        //MasterCompanion
                        gpt_ScrollToAd = false;
                        break;
                    default:
                        //Unknown Ad Type
                        gpt_ScrollToAd = false;
                        break;
                }
                //Hide the second ad if found
                var tCount = 0;
                $(".widget.literatumAd.none.GPT-ad-placeholder.widget-horizontalAd.widget-compact-all").each(function (index) {
                    tCount += 1;
                    if (tCount !== 1) {
                        $(this).hide();
                    }
                });
                break;
            case "LANCET":
                objLeaderboard = ".js__adToHide";
                offset = 80;
                switch (parseInt(adTypeId)) {
                    case 2:
                        //Leaderboard
                        gpt_ScrollToAd = false;
                        $('.body-verticalAd').hide();
                        break;
                    case 5:
                        //Mobile
                        //Scroll to Top
                        gpt_ScrollToAd = false;
                        break;
                    case 3: //MPU
                    case 4: //SkyScraper
                        $(objLeaderboard).hide();
                        adId = $('.gpt-ad-defined[data-adsize="skyscraper"').attr('id');
                        break;
                    case 10:
                        //MasterCompanion
                        gpt_ScrollToAd = false;
                        break;
                    default:
                        //Unknown Ad Type
                        gpt_ScrollToAd = false;
                        break;
                }
                break;
        }

        //Scroll to Top
        var gpt_container = $("html,body");
        gpt_container.animate({ scrollTop: 0, scrollLeft: 0 });

        if (gpt_ScrollToAd) {
            //If Adexists, scroll to it
            var gpt_scrollTo = $('#' + adId);
            if (gpt_scrollTo.length > 0) {
                //Scroll to the Ad
                var gpt_topPosition = gpt_scrollTo.offset().top - gpt_container.offset().top + gpt_container.scrollTop();
                if (gpt_topPosition > 0) {
                    gpt_container.animate({ scrollTop: gpt_topPosition, scrollLeft: 0 });
                    if (gpt_topPosition - offset > 0 && offset > 0) {
                        gpt_container.animate({ scrollTop: gpt_topPosition - offset, scrollLeft: 0 });
                    }
                }
            }
        }
    }
    //--------------------------------------------------------------------------
    async function gpt_CheckForCookiePolicy() {
        var returnVal = false;
        if ($('#onetrust-accept-btn-handler').length > 0) {
            $('#onetrust-accept-btn-handler').click();
            returnVal = true;
        }
        return returnVal;
    }
    //--------------------------------------------------------------------------
    function gpt_InitAds() {
        var gpt_ResponsiveHomepage = false;

        switch (gpt_AdFile) {
            case "JBS":
            case "CELLJOURNAL":
            case "CELLBUCKET":
                //Responsive Check
                if ($('#hdrHomeBrand').length > 0) {
                    gpt_ResponsiveHomepage = true;
                }
                break;
        }

        //InterScroller Check
        if (gpt_AdFile === "JBS") {
            var gpt_InterScrollerEnabled = false;
            var gpt_InterScrollerInsertObj;

            if ($("#articleHeader").length > 0) {
                //It's an article Page
                if ($('.article__sections > section').length > 0) {
                    gpt_InterScrollerEnabled = true;
                    gpt_InterScrollerInsertObj = $(".article__sections > section");
                }
            }
            else {
                if ($('.toc__section').length > 0) {
                    //It's a TOC Page
                    gpt_InterScrollerEnabled = true;
                    gpt_InterScrollerInsertObj = $(".toc__section").first();
                }
            }

            //Add the Interscroller
            if (gpt_InterScrollerEnabled) {
                gpt_InterScrollerInsertObj.first().append($("#gpt-Interscroller").clone());
                $("#gpt-Interscroller").remove();
                $(".gpt-adinterscroller").addClass("gpt-ad");
            }
        }

        googletag.cmd.push(function () {
            var gptBoomBoxSizeMapping;
            var gptFluidMapping;
            var gptHomePageSidebarMapping;
            var gptCellHomePageSidebarMapping;
            var gptInterscrollerMapping;
            var gptLeaderboardSizeMapping;
            var gptMobileSizeMapping;
            var gptPrestitialMapping;
            var gptRectangleShortSizeMapping;
            var gptRectangleSizeMapping;
            var gptSideBarSizeMapping;
            var gptTallSizeMapping;
            var gptWideSizeMapping;
            var gptWideRectangleSizeMapping;

            //***********************************************
            //Start Define Size mapping based on client Viewport
            //***********************************************
            if (gpt_AdFile === 'PU') {
                gptTallSizeMapping = googletag.sizeMapping().
                    addSize([992, 0], [[300, 600], [160, 600], [120, 600]]).
                    addSize([0, 0], []).
                    build();

                gptRectangleSizeMapping = googletag.sizeMapping().
                    addSize([992, 0], [[300, 250]]).
                    addSize([0, 0], []).
                    build();

                gptRectangleShortSizeMapping = googletag.sizeMapping().
                    addSize([992, 0], [[300, 250], [320, 50], [300, 50]]).
                    addSize([0, 0], [[300, 250], [320, 50], [300, 50]]).
                    build();

                gptWideSizeMapping = googletag.sizeMapping().
                    addSize([992, 0], [[728, 90]]).
                    addSize([760, 0], [[728, 90], [320, 50], [300, 50]]).
                    addSize([0, 0], [[320, 50], [300, 50]]).
                    build();

                gptWideRectangleSizeMapping = googletag.sizeMapping().
                    addSize([992, 0], []).
                    addSize([760, 0], [[320, 50], [300, 50], [300, 250]]).
                    addSize([0, 0], [[320, 50], [300, 50], [300, 250]]).
                    build();

                gptMobileSizeMapping = googletag.sizeMapping().
                    addSize([0, 0], [[320, 50], [300, 50]]).
                    build();

                gptFluidMapping = googletag.sizeMapping().
                    addSize([0, 0], ['fluid']).
                    build();

                gptPrestitialMapping = googletag.sizeMapping().
                    addSize([760, 0], [[1, 1]]).
                    build();
            }
            else {
                //JBS-CELL-LANCET
                gptLeaderboardSizeMapping = googletag.sizeMapping().
                    addSize([992, 0], [[728, 90]]). 						// Desktop
                    addSize([768, 0], [[728, 90]]). 								// Tablet Landscape
                    addSize([0, 0], [[320, 50], [300, 50]]). 						// Phone & Tablet Portrait
                    build();

                gptHomePageSidebarMapping = googletag.sizeMapping().
                    addSize([2090, 795], [[300, 600], [300, 250], [160, 600], [120, 600]]).
                    addSize([1910, 795], [[160, 600], [120, 600]]).
                    addSize([0, 0], []).
                    build();

                gptCellHomePageSidebarMapping = googletag.sizeMapping().
                    addSize([2090, 795], [[300, 600], [300, 250], [336, 280], [160, 600], [120, 600]]).
                    addSize([1910, 795], [[160, 600], [120, 600]]).
                    addSize([0, 0], []).
                    build();

                gptSideBarSizeMapping = googletag.sizeMapping().
                    addSize([1140, 795], [[300, 600], [160, 600], [120, 600], [300, 250]]). 	// SkyScraper - Desktop (Require min 630 vertical)
                    addSize([1140, 445], [[300, 250]]).			 				// BoomBox Fall Back - Desktop (Require min 280 vertical)
                    addSize([0, 0], []). 										// Phone
                    build();

                gptBoomBoxSizeMapping = googletag.sizeMapping().
                    addSize([768, 0], [[300, 250], [336, 280]]). 					// Desktop & Tablet Landscape
                    addSize([0, 0], []). 											// Phone
                    build();

                gptFluidMapping = googletag.sizeMapping().
                    addSize([0, 0], ['fluid']).
                    build();

                gptPrestitialMapping = googletag.sizeMapping().
                    addSize([600, 700], [[1, 1]]). 					// Desktop & Tablet Landscape
                    addSize([0, 0], []). 							// Phone
                    build();

                gptInterscrollerMapping = googletag.sizeMapping().
                    addSize([1140, 445], []).
                    addSize([1024, 768], [[1024, 768]]).
                    addSize([768, 1024], [[768, 1024]]).
                    addSize([480, 320], [[480, 320]]).
                    addSize([320, 480], [[320, 480]]).
                    build();
            }
            //***********************************************
            //End Define Size mapping based on client Viewport
            //***********************************************

            //***********************************************
            //Start detection for ad slots on page
            //***********************************************
            var gptMasterPage = gpt_CheckForNULL($('#gptPage').val());
            var gptMasterSite;

            if (gpt_AdFile === 'PU') {
                gptMasterSite = $('#gptSite').val();
            }
            else {
                //JBS-CELL-LANCET
                gptMasterSite = "dev";

                if (gpt_IsProd) {
                    gptMasterSite = gpt_CheckForNULL($('#gptSite').val());

                    //If there is no master site, check for a defaultsite
                    if (gptMasterSite == null) {
                        gptMasterSite = gpt_CheckForNULL($('#gptDefaultSite').val());
                    }
                }
                else {
                    //Dev ENV
                    //If the page has no gptSite Value, assume no value which will disable ads
                    if (gpt_CheckForNULL($('#gptSite').val()) === null) {
                        gptMasterSite = null;
                    }
                }

                //If there is no master Page, check for a Page using the URL
                if (gptMasterPage === null) {
                    gptMasterPage = GPT_GetPageByURL();
                }
            }

            $(".gpt-ad").each(function (index) {
                var gptPage = '';
                var adSizeMapping = '';
                var gptPOS;
                var gptTC;
                var gptNative;
                var adId;
                var gptSite;
                var tempSlot = null;

                if (gpt_IsProd) {
                    //Check if the ad slot has it's own site defined
                    if (typeof $(this).data('site') === 'undefined') {
                        gptSite = gptMasterSite;
                    }
                    else {
                        gptSite = gpt_CheckForNULL($(this).data('site'));
                    }
                }
                else {
                    gptSite = gptMasterSite;
                }

                if (gpt_AdFile === 'PU') {
                    adId = $(this).attr('id');
                }
                else {
                    //JBS-CELL-LANCET
                    adId = 'gpt-ad-' + index + 1;
                }

                if (gpt_CheckForNULL(gptSite) !== null) {
                    gptSite_Debug = gptSite;

                    gptPOS = parseInt($(this).data('pos')) || -1;
                    if (gptPOS === -1) {
                        gptPOS = index + 1;
                    }

                    //Check if the ad slot has it's own page defined
                    gptPage = $(this).data('page');
                    if (gpt_CheckForNULL(gptPage) == null) {
                        //Use the Master Page
                        gptPage = gptMasterPage;
                    }

                    //If the page is not null, preceed it with a slash
                    if (gptPage !== null) {
                        gptPage = '/' + gptPage;
                    }
                    else {
                        gptPage = '';
                    }
                    gptPage_Debug = gptPage;


                    gptTC = $(this).data('tc');
                    if (typeof gptTC === "undefined") {
                        gptTC = '';
                    }

                    gptNative = $(this).data('native');
                    if (typeof gptNative === "undefined") {
                        gptNative = '';
                    }

                    //Determine sizemapping based on data-adsize
                    if (gpt_AdFile === 'PU') {
                        switch ($(this).data('adsize')) {
                            case 'tall':
                                adSizeMapping = gptTallSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[120, 600], [160, 600], [300, 600]], adId);
                                break;
                            case 'rectangle':
                                adSizeMapping = gptRectangleSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[300, 250]], adId);
                                break;
                            case 'rectangleshort':
                                adSizeMapping = gptRectangleShortSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[300, 250], [320, 50], [300, 50]], adId);
                                break;
                            case 'wide':
                                adSizeMapping = gptWideSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[728, 90], [320, 50], [300, 50]], adId);
                                break;
                            case 'widerectangle':
                                adSizeMapping = gptWideRectangleSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[320, 50], [300, 50], [300, 250]], adId);
                                break;
                            case 'mobile':
                                adSizeMapping = gptMobileSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[320, 50], [300, 50]], adId);
                                break;
                            case 'fluid':
                                adSizeMapping = gptFluidMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, 'fluid', adId);
                                break;
                            case 'prestitial':
                                adSizeMapping = gptPrestitialMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[1, 1]], adId);
                                break;
                        }
                    }
                    else {
                        //JBS-CELL-LANCET
                        switch ($(this).data('adsize')) {
                            case 'cell-leaderboard':
                            case 'leaderboard':
                                adSizeMapping = gptLeaderboardSizeMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[728, 90], [320, 50], [300, 50]], adId);
                                break;
                            case 'bottom':
                                if (gpt_ResponsiveHomepage) {
                                    adSizeMapping = gptHomePageSidebarMapping;
                                    tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[120, 600], [160, 600], [300, 600], [300, 250]], adId);
                                }
                                else {
                                    adSizeMapping = gptBoomBoxSizeMapping;
                                    tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[300, 250]], adId);
                                }
                                break;
                            case 'boombox':
                                if (gpt_AdFile === "CELLJOURNAL" || gpt_AdFile == "CELLBUCKET") {
                                    if (gpt_ResponsiveHomepage) {
                                        adSizeMapping = gptCellHomePageSidebarMapping;
                                        tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[120, 600], [160, 600], [300, 600], [300, 250], [336, 280]], adId);
                                    }
                                    else {
                                        adSizeMapping = gptBoomBoxSizeMapping;
                                        tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[300, 250], [336, 280]], adId);
                                    }
                                }
                                else {
                                    adSizeMapping = gptBoomBoxSizeMapping;
                                    tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[300, 250]], adId);
                                }
                                break;
                            case 'interscroller':
                                adSizeMapping = gptInterscrollerMapping;
                                tempSlot = googletag.defineSlot('/6053/els.' + gptSite + gptPage, [[320, 480], [480, 320], [768, 1024], [1024, 768]], adId);
                                break;
                            case 'sidebar':
                            case 'skyscraper':
                                adSizeMapping = gptSideBarSizeMapping;
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<cite>The Lancet</cite> United States of Health Blog closed on 31 December 2018. All archived posts are available to <a href="/pb-assets/Lancet/lancet/TL_USA_Posts-1552663776617.pdf">download here</a> [PDF, 4 MB]
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