Mayo Clinic Nicotine Research Program, Rochester, Minnesota, United States
VA New York Harbor Healthcare System, New York City, New York, United States
Maryhaven, Inc., Columbus, Ohio, United States
University of California, Los Angeles, UCLA Medical Center, 10833 Le Conte Ave., Los Angeles, California, United States
University of Pennsylvania, University of Pennsylvania Medical Center, 3400 Spruce Street, Philadelphia, Pennsylvania, United States
Mercy Hospital, Western Hills, 3131 Queen City Ave., Cincinnati, Ohio, United States
University of Cincinnati, Cincinnati, Ohio, United States
University of Cincinnati, Cincinnati, Ohio, United States
University of Cincinnati Medical Center, Cincinnati, Ohio, United States
The Department of Veterans Affairs / Veterans Healthcare System of Ohio, Cincinnati, Ohio, United States
University of Cincinnati Medical Center, Cincinnati, Ohio, United States
Stanford University, Stanford, California, United States
The Jewish Hospital, Cincinnati, Ohio, United States
William Beaumont Hospital, Royal Oak, Michigan, United States
Women's Health Research Program, Cincinnati, Ohio, United States