This is a paragraph from an artice talking about Floyd Landis:

"The "B" samples were tested at the behest of USADA, which is trying to bolster evidence for Landis' May 14 arbitration hearing. The most recent tests used a technique that can distinguish synthetic from natural forms of testosterone, a male sex hormone."

In the past the only way a drug test could test for testosterone in urine was an elevated testosterone to epitestosterone levels. This paragraph from the article is claiming there are now drug tests that can distinguish synthetic testosterone from natural testosterone. This is the first I have ever heard of this. Anyone know if this is true, or just bunch of bs from a reporter who did not do his homework?