The value of rectal biopsy in the diagnosis of Crohn's disease.
D001464:Barium; D001706:Biopsy; D003092:Colitis / Q000175:diagnosis; D003424:Crohn Disease / Q000175:diagnosis*; D006801:Humans; D012007:Rectum / Q000473:pathology*; D012812:Sigmoidoscopy
D001464:Barium