Mitral valve anomalies in children.
D002648:Child; D002675:Child, Preschool; D006330:Heart Defects, Congenital / Q000150:complications / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008943:Mitral Valve / Q000002:abnormalities*; D008944:Mitral Valve Insufficiency / Q000151:congenital* / Q000453:epidemiology / Q000209:etiology