Steven L. Bernstein, James Dziura, and Lori A. Post are with the Department of Emergency Medicine, Yale School of Medicine, New Haven, CT. Steven L. Bernstein is also with the Yale Cancer Center, New Haven. Nancy A. Rigotti is with the General Medicine Division, Department of Medicine, and Tobacco Research and Treatment Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA. At the time this article was written, Sunkyung Yu was with the Yale School of Public Health, New Haven.