Preoperative Enzymo-Histochemical Diagnosis of Dysganglionoses Associated with Anorectal Malformations (ARM) with Recto-Vestibular and Recto-Perineal Fistula - Martucciello, G; Mazzola, C; Favre, A; Negri, F; Bertagnon, M; Morando, A; Torre, M; Gambini, C; Jasonni, V (European Journal of Pediatric Surgery, 1999)