1. 5-aminosalicylic acid (5-ASA) versus salazopirin (SASP) in the oral treatment of active ulcerative colitis (UC) and in remission [abstract];Andreoli;Clinical Controversies in Inflammatory Bowel Disease,1987
2. Coated oral 50 aminosalicylic acid (Claversal) is equivalent to sulfasalazine for remission maintenance in ulcerative colitis;Ardizzone;J Clin Gastroenterol,1995
3. Comparison of mesalazine with sulphasalazine in prophylactic treatment of ulcerative collitis [abstract];Bianchi Porro;Gut,1989
4. Maintenance of remission of ulcerative colitis by mesalamine (Asacol) versus placebo [abstract];Hanauer;Gastroenterology,1994
5. An oral preparation of mesalamine as long-term maintenance therapy for ulcerative colitis. A randomized, placebo-controlled trial;Hanauer;Ann Intern Med,1996