The validity of rectal biopsy in relation to morphology and distribution of ganglion cells.
D001706:Biopsy; D002648:Child; D002675:Child, Preschool; D005724:Ganglia / Q000473:pathology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008531:Megacolon / Q000175:diagnosis* / Q000473:pathology; D012007:Rectum / Q000294:innervation / Q000473:pathology*