[Oral therapy instead of enemas].
D000284:Administration, Oral; D000636:Aminosalicylic Acids / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D003093:Colitis, Ulcerative / Q000188:drug therapy*; D005500:Follow-Up Studies; D006801:Humans; D013997:Time Factors
D000636:Aminosalicylic Acids; C032587:olsalazine