search at the journal of american medical association . They will give you the actual tests done by many institutes and hospitals. You can find it by searching yahoo and typing jama .
1 Answers · Health · 24/10/2006
... 2002, a long-anticipated paper appeared in JAMA ( Journal of the American Medical Association ) titled "Ginkgo for memory enhancement: a ...
3 Answers · Health · 28/08/2007