1. We thank CICRA (Crohn's disease in Childhood Blackshaw AJ, Walker-Smith JA. Chronic inflammatory bowel disease in childhood;Chong, S.K.F.; Bartram, C.I.; Campbell, C.A.; Williams, C.B.;Br Med J,1982
2. Overlap in the spectrum of non-specific inflammatory bowel disease - 'colitis indeterminate';Price, A.B.;J Clin Pathol,1978
3. Differential diagnosis of inflammatory bowel disease;Bartram, C.I.,1983
4. Colonoscopy;Cotton, P.B.; Williams, C.B.,1980
5. The value of colonoscopy in diagnosis of Crohn's disease;Geboes, K.; Vantrappen, G.;Gastrointest Endosc,1975