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
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Clinical Trials Unit. University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pennsylvania Center for Community Based Research and Health Disparities, Philadelphia, Pennsylvania, United States
University of Pennsylvania Center for Community Based Research and Health Disparities, Philadelphia, Pennsylvania, United States
University of Minnesota, Plymouth, Minnesota, United States
University of California San Francisco Medical Center, San Francisco, California, United States
California Pacific Medical Center, San Francisco, California, United States
Princess Marina Hospital, Gaborone, Botswana
University of Pennsylvania, Philadelphia, Pennsylvania, United States