Geisinger Health System, Danville, Pennsylvania, United States
Harvard Vanguard Medical Associates, Boston, Massachusetts, United States
Unversity of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Lankenau Medical Center, Wynnewood, Pennsylvania, United States
Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Treatment Research Center, Philadelphia, Pennsylvania, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Penn Center for Women's Behavioral Wellness, Philadelphia, Pennsylvania, United States
University at Buffalo - State University of New York, Buffalo, New York, United States
Center for Interdisciplinary Research on Nicotine Addiction, University of Pennsylvania, Philadelphia, Pennsylvania, United States
Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
University of Pennsylvania, Philadelphia, Pennsylvania, United States