Electrocardiogram and cardiac rhythm of healthy young people.
D000293:Adolescent; D000328:Adult; D001146:Arrhythmia, Sinus / Q000175:diagnosis; D005117:Cardiac Complexes, Premature / Q000175:diagnosis; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006329:Heart Conduction System / Q000502:physiology; D006339:Heart Rate; D006801:Humans; D008297:Male; D012016:Reference Values