TY - RPRT TI - Preliminary experience with intrasphincteric botulinum toxin for persistent constipation after pull-through for Hirschsprung's disease. AU - J C Langer AU - E Birnbaum PY - 1997 DO - 10.1016/s0022-3468(97)90399-7 UR - https://pubmed.ncbi.nlm.nih.gov/9247234/ ID - 9247234 ER -