1. Center for Tobacco Research and Intervention of Wisconsin, Department of Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, WI
2. National Institute for Health Innovation, School of Population Health, University of Auckland, Auckland, New Zealand
3. Department of Psychiatry, Yale University School of Medicine, New Haven, CT
4. Department of Medicine, Massachusetts General Hospital, Boston, MA
5. Division of Addiction Psychiatry, Rutgers University, New Brunswick, NJ
6. Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA
7. Department of Medicine, University of Minnesota, Minneapolis, MN