=== HTTP code : 200 ===

HTTP/1.0 200 OK
Date: Fri, 02 Aug 2013 16:35:29 GMT
Server: Apache
Cache-Control: private
NCBI-SID: 396B70DA1FBDFD11_0183SID
Content-Type: text/html; charset=UTF-8
Set-Cookie: ncbi_sid=396B70DA1FBDFD11_0183SID; domain=.nih.gov; path=/; expires=Sat, 02 Aug 2014 16:35:29 GMT
Set-Cookie: WebEnv=1lkNLpwS5bc95yLWiLR07bcpbW76QEXrxXJhmi0Kd0sNwpjb_CFt7D-oJDNz2PSIvOPulzVbZvD4B4B6bDpIvlvuzZ9gfgb59e7AK%40396B70DA1FBDFD11_0183SID; domain=.nlm.nih.gov; path=/; expires=Sat, 03 Aug 2013 00:35:29 GMT
Vary: Accept-Encoding
Connection: close


Link is valid.