Annenberg Public Policy Center, Philadelphia, Pennsylvania, United States
Lazenby Hall, Ohio State University, Columbus, Ohio, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States
Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States
Philadelphia VA Medical Center, Philadelphia, PA, Philadelphia, Pennsylvania, United States
University of Pennsylvania Treatment Research Center, Philadelphia, Pennsylvania, United States
Northwestern University, Chicago, Illinois, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Ingersoll Rand, Davidson, North Carolina, United States
Vanguard Health Systems, Nashville, Tennessee, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Center for Interdisciplinary Research on Nicotine Addiction, University of Pennsylvania, Philadelphia, Pennsylvania, United States
Abramsonc Cancer Center of The University of Pennsylvania, Philadelphia, Pennsylvania, United States