Hirschsprung's disease--clinical aspects.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008531:Megacolon / Q000175:diagnosis* / Q000235:genetics / Q000401:mortality; D012737:Sex Factors; D012846:Singapore