=== HTTP code : 200 ===

HTTP/1.0 200 OK
Date: Fri, 02 Aug 2013 16:35:29 GMT
Server: Apache
Cache-Control: private
NCBI-SID: CE8B6B191FBDFD11_0076SID
Content-Type: text/html; charset=UTF-8
Set-Cookie: ncbi_sid=CE8B6B191FBDFD11_0076SID; domain=.nih.gov; path=/; expires=Sat, 02 Aug 2014 16:35:29 GMT
Set-Cookie: WebEnv=1DY2fRXysAUulP34500qW8y_PtumbQ-ZvaiJOIFXkLvUGQlz4JzSHsnqDZu1hF4jsCAnF7FBNAW6i7cnCAPe-fcX7fXuT9l_LU6Qc%40CE8B6B191FBDFD11_0076SID; domain=.nlm.nih.gov; path=/; expires=Sat, 03 Aug 2013 00:35:30 GMT
Vary: Accept-Encoding
Connection: close


Link is valid.