Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, USA
Biography
Donald P. Tashkin is an American pulmonologist and professor of medicine at the University of California, Los Angeles, who has studied the effects of cannabis. Tashkin has spent 30 years studying cannabis. In 2006, he was in charge of a large case-control study on marijuana and the risk of cancer. Contrary to his group's expectations, the study found no increase in lungcancer risk even among heavy users of marijuana