As much as I am posting these links because you asked a simple Google search will quickly give you the same thing.
http://www.nature.com/nm/journal/v10/n3/full/nm993.html
http://www.toxicology.org/AI/Pub/Tox/2009Tox.pdf
WADA's Alert
WADA issues alert on GW501516
Thanks
~T
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