title: The value of rectal biopsies.
mesh_terms: D000562:Amebiasis / Q000175:diagnosis; D001706:Biopsy; D003092:Colitis / Q000175:diagnosis; D003093:Colitis, Ulcerative / Q000175:diagnosis; D003110:Colonic Neoplasms / Q000175:diagnosis; D003424:Crohn Disease / Q000175:diagnosis; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D006801:Humans; D007410:Intestinal Diseases / Q000175:diagnosis*; D008722:Methods; D011230:Precancerous Conditions / Q000175:diagnosis; D011349:Proctitis / Q000175:diagnosis; D012007:Rectum / Q000473:pathology*