Q&A With Addiction Treatment Specialistis, Joseph R. Volpicelli, MD, PhD, and Tracy Steen, PhD
February 11th 2008Joseph R. Volpicelli, MD, PhD, is an associate professor in the Department of Psychiatry at the University of Pennsylvania School of Medicine, and a Senior Scientist at the Penn Center for Studies of Addiction. Tracy Steen, PhD, is Clinical Director at the Charles O'Brien Center for Addiction Treatment, University of Pennysylvania.