Courtney, M G Randomised comparison of olsalazine and mesalazine in prevention of relapses in ulcerative colitis. [electronic resource] - Lancet (London, England) May 1992 - 1279-81 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0140-6736 Standard No.: 10.1016/0140-6736(92)91601-4 doi Subjects--Topical Terms: AdolescentAdultAgedAminosalicylic Acids--therapeutic useColitis, Ulcerative--drug therapyFemaleHumansLife TablesMaleMesalamineMiddle AgedPatient ComplianceRecurrenceRemission Induction