title: The context of the Activity Counseling Trial.
authors.affiliation: National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA.
authors.forename: D G
authors.initials: DG
authors.lastname: Simons-Morton
mesh_terms: D002318:Cardiovascular Diseases / Q000517:prevention & control*; D015444:Exercise; D015438:Health Behavior; D006293:Health Promotion; D006801:Humans; D015337:Multicenter Studies as Topic; D009316:National Institutes of Health (U.S.); D009937:Organizational Objectives; D016032:Randomized Controlled Trials as Topic; D012106:Research; D014481:United States