8Dunne W, Cooke W, Alle R. Enzymatic and morphometric evidence for Crohn's disease as a diffuse lesion of the gastrointestinal tract[J]. Gut, 1977, 18:290-294.
9Platell C, Mackay J, Collopy B, et al. Anal pathology in patients with Crohn's disease[J]. Aust NZJ Surg, 1996, 66:5.
10Griffiths AM, Alemayehu E, Sherman P. Clinical features of gastroduodenal Crohn's disease in adolescents[J].Pediatr Gastroenterol Nutr, 1989, 8.. 166-171.