title: [Prospective study on the etiology of chronic colitis].
authors.forename: J
authors.initials: J
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003092:Colitis / Q000209:etiology*; D003093:Colitis, Ulcerative / Q000175:diagnosis; D003109:Colonic Diseases, Functional / Q000175:diagnosis; D003113:Colonoscopy; D003937:Diagnosis, Differential; D004405:Dysentery, Bacillary / Q000175:diagnosis; D004761:Enterocolitis, Pseudomembranous / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies