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Peter Grinspoon

Peter Grinspoon

, M.D. is a primary care physician and a cannabis specialist at Massachusetts General Hospital and an instructor in medicine at Harvard Medical School. He is the author of the new book Seeing Through the Smoke: A Cannabis Expert Untangles the Truth about Marijuana. He is a TedX speaker, a national media figure, and a board member of the physician advocacy group Doctors for Cannabis Regulation.


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