Video Comment on Osera et al.
D006801:Humans; D007413:Intestinal Mucosa / Q000000981:diagnostic imaging / Q000473:pathology; D009367:Neoplasm Staging; D011351:Proctoscopy / Q000379:methods*; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D012007:Rectum / Q000000981:diagnostic imaging / Q000473:pathology