Letter: Prevention of coronary heart-disease.
D003327:Coronary Disease / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control*; D006266:Health Education; D006801:Humans; D008019:Life Style; D008403:Mass Screening; D010817:Physician-Patient Relations; D012907:Smoking / Q000150:complications; D013315:Stress, Psychological / Q000150:complications; D006113:United Kingdom; D014481:United States