Posted by seldomseen on March 19, 2009, at 9:56:29
In reply to Re: Vitamin D May Not Be the Answer to SAD » jrbecker76, posted by Larry Hoover on March 18, 2009, at 14:30:20
What they are interpreting as different geographic locations most likely should be called different performance sites.
It is unclear from the text if the study was conducted by the same personnel/same laboratories at the two locations. It can make a huge difference.
Seldom.
poster:seldomseen
thread:885916
URL: http://www.dr-bob.org/babble/20090313/msgs/886053.html