Colonoscopy--a direct approach to the study of colon pathology.
D003106:Colon / Q000033:anatomy & histology; D003108:Colonic Diseases / Q000175:diagnosis; D019723:Endoscopes; D004724:Endoscopy / Q000379:methods; D005336:Fiber Optic Technology / Q000295:instrumentation; D006801:Humans