title: Letter: Diagnosis of Hirschsprung's disease.
mesh_terms: D001706:Biopsy; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000473:pathology; D008531:Megacolon / Q000473:pathology*; D012007:Rectum / Q000473:pathology