Meconium ileus and Hirschsprung's disease.
D006627:Hirschsprung Disease; D006801:Humans; D045823:Ileus; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D007415:Intestinal Obstruction; D008470:Meconium; D008531:Megacolon; D008643:Mesentery
MECONIUM; MEGACOLON; MESENTERIC PLEXUS