=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Fri, 29 Dec 2017 07:17:35 GMT
Content-Type: text/html; charset=utf-8
Connection: close
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Cf-Railgun: direct (starting new WAN connection)
Content-Language: en
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Link: &lt;http://pediatrics.aappublications.org/content/131/6/e1829&gt;; rel=&quot;canonical&quot;
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Request headers
================
HEAD /content/131/6/e1829 HTTP/1.1
Host: pediatrics.aappublications.org
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: https://jagjuice.us
Connection: close


Link is valid.