1. Division of General Medicine and Primary Care, Brigham and Women’s Hospital, Boston, Massachusetts2Department of Social and Behavior Sciences, Harvard School of Public Health, Boston, Massachusetts3Harvard Medical School, Boston, Massachusetts
2. Division of General Medicine and Primary Care, Brigham and Women’s Hospital, Boston, Massachusetts3Harvard Medical School, Boston, Massachusetts
3. Harvard Medical School, Boston, Massachusetts4Tobacco Research and Treatment Center, Massachusetts General Hospital, Boston5Division of General Internal Medicine, Massachusetts General Hospital, Boston
4. Division of General Medicine and Primary Care, Brigham and Women’s Hospital, Boston, Massachusetts
5. Department of Social and Behavior Sciences, Harvard School of Public Health, Boston, Massachusetts
6. Harvard Medical School, Boston, Massachusetts
7. Harvard Medical School, Boston, Massachusetts6Division of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts