Innocent murmurs.
D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D005333:Fetus; D006326:Heart Auscultation; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011247:Pregnancy