Coronary heart disease--the doctor's dilemma.
D000328:Adult; D003327:Coronary Disease / Q000503:physiopathology / Q000517:prevention & control*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D005082:Physical Exertion; D010809:Physical Fitness