The association of congenital heart disease with Down's syndrome (mongolism).
D002140:California; D002648:Child; D004314:Down Syndrome / Q000150:complications* / Q000453:epidemiology; D004374:Ductus Arteriosus, Patent / Q000453:epidemiology; D006330:Heart Defects, Congenital / Q000150:complications* / Q000453:epidemiology; D006343:Heart Septal Defects / Q000453:epidemiology; D006344:Heart Septal Defects, Atrial / Q000453:epidemiology; D006801:Humans; D013771:Tetralogy of Fallot / Q000453:epidemiology