Smoking

• King's Daughters Medical Center — Ashland, Kentucky, United States
• Hardin Memorial Health Cancer Care Center — Elizabethtown, Kentucky, United States
• ARH Cancer Center — Hazard, Kentucky, United States
• Kentucky Cancer Clinic — Hazard, Kentucky, United States

• Medical University of South Carolina — Charleston, South Carolina, United States

• Centre for Addiction and Mental Health — Toronto, Ontario, Canada

• ATERA : Association Tunisienne d'Etude & de Recherche sur l'Athérosclérose — Tunis, Tunisia

• Fred Hutchinson Cancer Research Center — Seattle, Washington, United States

Not specified

• Cedars-Sinai Medical Center — Los Angeles, California, United States

• Center for Technology and Behavioral Health, Dartmouth College — Lebanon, New Hampshire, United States

• Babes-Bolyai University — Cluj-Napoca, Cluj, Romania

• Mehwish Ghazal — Karachi, Sindh, Pakistan