1. Colonoscopic polypectomy in children;Douglas, JR, Campbell; CA, Salisbury; DM, Walker-Smith; JA, Williams; C.B.;BMJ,1980
2. Gastrointestinal haemorrhage;Walker-Smith, J.A.; Hamilton, JR, Walker; W.A.,1983
3. Miscellaneous disorders;Walker-Smith, J.A.; Hamilton, JR, Walker; W.A.,1983
4. Colonoscopy;Cotton, P.B.; Williams, C.B.,1980
5. Colonoscopic polypectomy;Cotton, P.B.; Williams, C.B.,1980