The frequency of asymptomatic disturbances of cardiac rhythm and conduction in middle-aged men.
D000288:Administrative Personnel; D001145:Arrhythmias, Cardiac / Q000145:classification / Q000453:epidemiology*; D003327:Coronary Disease / Q000401:mortality / Q000503:physiopathology; D004562:Electrocardiography; D005500:Follow-Up Studies; D006327:Heart Block / Q000453:epidemiology; D006329:Heart Conduction System / Q000502:physiology*; D006801:Humans; D008297:Male; D008487:Medical History Taking; D008875:Middle Aged; D009515:New Jersey; D009787:Occupational Medicine; D010808:Physical Examination; D013610:Tachycardia / Q000453:epidemiology; D013614:Tachycardia, Paroxysmal / Q000453:epidemiology