=== HTTP code : 200 ===

HTTP/1.0 200 OK
Date: Fri, 02 Aug 2013 13:07:45 GMT
Server: Apache
Cache-Control: private
NCBI-SID: 396D707B1FBAF211_0144SID
Content-Type: text/html; charset=UTF-8
Set-Cookie: ncbi_sid=396D707B1FBAF211_0144SID; domain=.nih.gov; path=/; expires=Sat, 02 Aug 2014 13:07:45 GMT
Set-Cookie: WebEnv=18AAKpoz_dY2WvFahPyk3AJXCJ87NGFrdBDcwBN88Nsfyre8MDtquozJTXGk9kGxaGRsB0VtblHDHAP_wFr8bNdLu6N2b7gUC4Rku%40396D707B1FBAF211_0144SID; domain=.nlm.nih.gov; path=/; expires=Fri, 02 Aug 2013 21:07:46 GMT
Vary: Accept-Encoding
Connection: close


Link is valid.