title: Evaluation of rectal biopsy, circumoval precipitin and urine precipitin tests in closed bilharzial colitis.
mesh_terms: D000328:Adult; D000941:Antigens / Q000652:urine; D001706:Biopsy; D003092:Colitis / Q000469:parasitology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011233:Precipitin Tests; D012007:Rectum / Q000469:parasitology / Q000473:pathology*; D012547:Schistosoma / Q000276:immunology / Q000302:isolation & purification; D012552:Schistosomiasis / Q000175:diagnosis*
chemical_list: D000941:Antigens