Tobacco Smoking

• Woodland International Research Group — Little Rock, Arkansas, United States
• Woodland Research Northwest — Rogers, Arkansas, United States
• St. Louis Clinical Trials — St Louis, Missouri, United States
• Midwest Clinical Research Center — Dayton, Ohio, United States

• High Point Clinical Trials Center — High Point, North Carolina, United States

• Altasciences Clinical Kansas, Inc. — Kansas City, Kansas, United States
• Central Kentucky Research Associates — Lexington, Kentucky, United States

• Frontage Clinical Services — Secaucus, New Jersey, United States
• Rose Research Center — Charlotte, North Carolina, United States
• Rose Research Center — Raleigh, North Carolina, United States

• Avail Clinical Research — DeLand, Florida, United States
• Comprehensive Clinical Development, Inc. — Miramar, Florida, United States
• Clinical Research Atlanta — Stockbridge, Georgia, United States
• Central Kentucky Research Associates (CKRA) — Lexington, Kentucky, United States

• Division of Addiction Psychiatry — New Brunswick, New Jersey, United States

• Stanford CNI — Stanford, California, United States

• University of Maryland, Shock Trauma Center — Baltimore, Maryland, United States

• University of Wisconsin Center for Tobacco Research and Intervention, School of Medicine and Public Health — Madison, Wisconsin, United States

Not specified