title: Innocent systolic murmurs in healthy 40-year-old men.
mesh_terms: D000328:Adult; D004562:Electrocardiography; D005080:Exercise Test; D006326:Heart Auscultation; D006337:Heart Murmurs; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D012146:Rest; D013599:Systole