googletag.impl.pubads.setPassbackAdContents({"/149443272/21741235687":{"_type_":"html","_expandable_":true,"_afc_expandable_":false,"_html_":"\u003cscript\u003e(function(){var d=this;window.rumTick=function(c){var b=window;var a=b;a=void 0===a?d:a;if(a=(a=a.performance)\u0026\u0026a.now?a.now():null)c={label:c,type:4,value:a},b=b.google_js_reporting_queue=b.google_js_reporting_queue||[],1024\u003eb.length\u0026\u0026b.push(c)};}).call(this);window.rumTick\u0026\u0026rumTick('fb');\u003c/script\u003e\u003cscript\u003evar viewReq = new Array();function vu(u) {var i=new Image();i.src=u.replace(\"\u0026amp;\",\"\u0026\");viewReq.push(i);}\u003c/script\u003e\u003cscript\u003evu(\"https://securepubads.g.doubleclick.net/pcs/view?xai\\x3dAKAOjsudfUaczTElB_Xv8hm1VxzfEtWqxwkMqEcYU0S0qwFjltHuPZyqyFEi99R79UUmv9CTKMitr8ravWTuGk0ee5-bX2Ouc_29d1x74SuGG9OM1cVP1PUlnGItY8iTmfs-qydffdGWH41SyUVZtN5vdxFrJ-LPiBjoLAlVaHmE_g7nw4jzxDU0HQOQc42Nog2moHC7s-XS1lkE5DevvZNCMzrg-tN3g6cwH-TfJaeOZrCGh2RohQ1zUi_giGFK\\x26sai\\x3dAMfl-YR6jxUe6CeXm0fQ7kcK1nfEWeOCTJuJDRG_xr906oMWXQk0e91glVXSGOcb9oiKdiBG7vV4BOqRO5Ed3kSG5r24Rluz2Y2FpoZm782EX_MT3Pj2gr-GvBWbRXg\\x26sig\\x3dCg0ArKJSzGld_BiPAlmpEAE\\x26urlfix\\x3d1\\x26adurl\\x3d\")\u003c/script\u003e\u003cscript src=\"//www.googletagservices.com/tag/js/gpt.js\"\u003e\n(function() {\nvar pbl = googletag.pubads().definePassback('/75507958/PONE_728x90_ATF', [728, 90]);\nif (\"null\".length \u003e 0 \u0026\u0026 \"null\" != \"null\") {\npbl.updateTargetingFromMap(JSON.parse(decodeURIComponent('null')));\n}\npbl.setTargeting(\"pgid\", \"pubgrade_disabled\");\npbl.display();\n})();\n\u003c/script\u003e\n\u003cimg src=\"//delivery.pbgrd.com/network/logger.php?cb=816328765\u0026pgpid=10.1371%2Fjournal.pone.0203029\u0026pgiid=15372048251408323861492229101371journalpone0203029\u0026pgpro=57\u0026pgpub=57\u0026pgzid=229\u0026pgscrh=768\u0026pgscrw=1024\u0026pgjour=PLOS ONE\u0026exc=1\" /\u003e\n\u003cscript src=\"https://tpc.googlesyndication.com/pagead/js/r20180910/r20110914/activeview/osd_listener.js\"\u003e\u003c/script\u003e\u003cscript type=\"text/javascript\"\u003eosdlfm(-1,'','BE8ivWeKfW7ffFIv-hQbRlIeQDAAAAAAQATgByAEJwAIC4AIA4AQBoAYW0ggFCIBhEAE','',1146722353,true,'ud\\x3d1\\x26la\\x3d0\\x26alp\\x3dxai\\x26alh\\x3d3396554818\\x26',3,'CAASEuRo9Wn71Dhj24qUoLuKZccj8g','https://pagead2.googlesyndication.com/pcs/activeview?xai\\x3dAKAOjsv8wEt1eLbVkcwb0AODQCAIXDe6LjRALFmOonb5q1LxfPyETollI9RigOQfOXkPwk5SQvpxy-2hhzG3L3gOls1I4ZGmDvFykNU\\x26sig\\x3dCg0ArKJSzBKnW86sCzETEAE','');\u003c/script\u003e\u003cscript\u003eif (window.top \u0026\u0026 window.top.postMessage) {window.top.postMessage('{\"googMsgType\":\"adpnt\"}','*');}\u003c/script\u003e\u003cscript\u003ewindow.google_rum_config=[[\"1834710135312406\",2,\"WeKfW-jLEovphQa7gJGQDQ\",\"CPfvvpzGwt0CFQt_wQodUcoBwg\"],[null,1,20000,1]];window.google_measure_js_timing=true;window.google_timing_url='https://tpc.googlesyndication.com/pagead/js/r20180910/r20110914/rum.js';window.google_rum_values={bdt:-1,bpp:-1,fdt:-1,idt:642,dtd:-1,dt:1537204824016};(function(){var e=this,f=/^[\\w+/_-]+[=]{0,2}$/,g=null;var k=function(){this.a=\"\";this.b=h},h={};var l=function(a,c,d){a.addEventListener\u0026\u0026a.addEventListener(c,d,!1)};var m=function(a,c){var d=c;d=void 0===d?e:d;if(d=(d=d.performance)\u0026\u0026d.now?d.now():null)a={label:a,type:4,value:d},c=c.google_js_reporting_queue=c.google_js_reporting_queue||[],1024\u003ec.length\u0026\u0026c.push(a)};function n(a){a.setTimeout(function(){if(a.google_timing_url){var c=a.document,d=c.createElement(\"script\"),b=new k;b.a=a.google_timing_url;d.src=b instanceof k\u0026\u0026b.constructor===k\u0026\u0026b.b===h?b.a:\"type_error:TrustedResourceUrl\";if(null===g){b:{b=e.document;if((b=b.querySelector\u0026\u0026b.querySelector(\"script[nonce]\"))\u0026\u0026(b=b.nonce||b.getAttribute(\"nonce\"))\u0026\u0026f.test(b))break b;b=null}g=b||\"\"}(b=g)\u0026\u0026d.setAttribute(\"nonce\",b);(c=c.getElementsByTagName(\"script\")[0])\u0026\u0026c.parentNode\u0026\u0026c.parentNode.insertBefore(d,c)}},a.google_timing_timeout||0)};(function(a,c){a!=a.top\u0026\u0026(l(a,\"DOMContentLoaded\",function(){var d=c.body.onload;c.body.onload=function(b){m(\"ol\",a);d\u0026\u0026d(b)}}),l(a,\"load\",function(){n(a)}),m(\"lb\",a))})(window,document);}).call(this);\u003c/script\u003e","_snippet_":true,"_height_":90,"_width_":728,"_empty_":false,"_is_afc_":false,"_use_sandbox_":true,"_creative_ids_":[138242973235],"_adgroup2_ids_":[4784285200],"_advertiser_ids_":[43483592],"_campaign_ids_":[246986912],"_is_psa_":false,"_is_3pas_":true,"_pvtoken_":"CiEIkMyp6RHoAbO8sf-CBIACiKHkRoACgKLkRoACp9fG_lA","_qqid_":"CPfvvpzGwt0CFQt_wQodUcoBwg","_pvtoken_lifetime_":-1}});