Media type: E-Article Title: Abnormal peptidergic innervation in internal sphincter achalasia Contributor: Ninan, George imprint: Elsevier BV, 1992 Published in: Journal of Pediatric Surgery Language: English DOI: 10.1016/0022-3468(92)90232-v ISSN: 0022-3468 Keywords: General Medicine ; Pediatrics, Perinatology and Child Health ; Surgery Origination: Footnote: