Neal L. Benowitz, MD, is Professor of Medicine and Bioengineering & Therapeutic Sciences, and Chief of the Division of Clinical Pharmacology and Experimental Therapeutics, University of California, San Francisco (UCSF). He received his medical degree from the University of Rochester School of Medicine in 1969, following which he served as a resident in internal medicine at the Bronx Municipal Hospital Center from 1969 to 1971. He then completed a postdoctoral fellowship in clinical pharmacology at UCSF and joined the faculty in 1974. His research interests have focused primarily on the human pharmacology and toxicology of nicotine. He has published more than 600 research papers. Dr Benowitz also maintains an active clinical practice in cardiovascular medicine and medical toxicology.