Innocent murmurs of childhood.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006326:Heart Auscultation; D006331:Heart Diseases / Q000175:diagnosis; D006337:Heart Murmurs; D006347:Heart Sounds; D006801:Humans; D007223:Infant; D013599:Systole