A controlled trial of the effects of health education in high-risk subjects.
D000328:Adult; D000367:Age Factors; D003327:Coronary Disease / Q000401:mortality / Q000517:prevention & control*; D006266:Health Education; D006306:Health Surveys; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000401:mortality; D012907:Smoking / Q000150:complications