The innocent murmur.
D003937:Diagnosis, Differential; D006326:Heart Auscultation; D006331:Heart Diseases / Q000145:classification / Q000175:diagnosis*; D006337:Heart Murmurs; D006343:Heart Septal Defects / Q000175:diagnosis; D006349:Heart Valve Diseases / Q000175:diagnosis; D006801:Humans; D010701:Phonocardiography; D013599:Systole