Editorial: Innocent praecordial murmurs in children.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006326:Heart Auscultation; D006330:Heart Defects, Congenital / Q000175:diagnosis / Q000453:epidemiology; D006331:Heart Diseases / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans