=== HTTP code : 200 ===

HTTP/1.0 200 OK
Date: Fri, 02 Aug 2013 16:34:38 GMT
Server: Apache
Cache-Control: private
NCBI-SID: 396E2DCB1FBDF9E1_0130SID
Content-Type: text/html; charset=UTF-8
Set-Cookie: ncbi_sid=396E2DCB1FBDF9E1_0130SID; domain=.nih.gov; path=/; expires=Sat, 02 Aug 2014 16:34:38 GMT
Set-Cookie: WebEnv=1Rgdmc37WW1sG2DlMuSaLArXLWLNac1XeWPSP8SMQA0eT6tghnfuTptiapKdn9ba9-NjvkaB5rXcXAmiN_LeM_ONSSKcgy8XaYdUA1%40396E2DCB1FBDF9E1_0130SID; domain=.nlm.nih.gov; path=/; expires=Sat, 03 Aug 2013 00:34:38 GMT
Vary: Accept-Encoding
Connection: close


Link is valid.