1. From the Bureau of Chronic Disease Prevention and Tobacco Control (S.S.Y., S.C.), Primary Care Information Project (B.P.T., A.R., M.D.B., S.C.), and Division of Prevention and Primary Care (S.Y.A.), New York City Department of Health and Mental Hygiene, Queens; Lutheran Family Health Centers, Clinical Affairs Brooklyn; Riverdale Family Practice PC, Bronx; (F.J.M.); and Heritage HealthCare Center (A.S.); New York, NY.