He then became a leading proponent of legalization. By Richard Sandomir Dr. Lester Grinspoon, a Harvard psychiatry professor who became a leading proponent of legalizing marijuana after his ...

Dr. Peter Grinspoon is a general practitioner at Harvard University, writer, medical cannabis specialist, and lecturer. In 2016 he published the book “Free Refills: A Doctor Confronts His ...

On January 18, 2022, the Medical Cannabis Research Center at Drexel University sponsored an event which featured Peter Grinspoon, MD, a primary care physician and cannabis specialist at Massachusetts ...