title: Endoscopic marking of colonic lesions.
mesh_terms: D003106:Colon; D003108:Colonic Diseases / Q000175:diagnosis* / Q000601:surgery; D004396:Coloring Agents; D004724:Endoscopy; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged
chemical_list: D004396:Coloring Agents