Chemical Composition and Labeling of Substances Marketed as Selective Androgen Receptor Modulators and Sold via the Internet

This study conducted web-based searches for products marketed as selective androgen receptor modulators, which are performance-enhancing drugs that have not been approved by the US Food and Drug Administration, and compared the chemical identities and the amount of ingredients in each product with...

About Robert Zinn

Robert Zinn, M.D., Ph.D. is a medical doctor, physician, and web entrepreneur, who, for over 15 years was employed by academic and research institutions and focused his clinical practices on very specialized patient populations, such as those with rare genetic diseases or rare cancers. He shares his knowledge through his website,

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