Wolff-Parkinson-White syndrome and familial cardiomegaly.
D006332:Cardiomegaly / Q000235:genetics*; D002318:Cardiovascular Diseases; D006327:Heart Block / Q000235:genetics*; D006801:Humans; D014927:Wolff-Parkinson-White Syndrome
HEART BLOCK/genetics; HEART ENLARGEMENT/genetics