Randomized clinical trial of Plantago ovata seeds (dietary fiber) as compared with mesalamine in maintaining remission in ulcerative colitis. Spanish Group for the Study of Crohn’s Disease and Ulcerative Colitis (GETECCU). - Fernandez-Banares,F.; Hinojosa,J.; Sanchez-Lombrana,J.L. (Am J Gastroenterol, 1999)