The course of colonic disease in ulcerative colitis patients with primary sclerosing cholangitis - PARLAK, Erkan; ÜLKER, Aysel; ALKIM, Canan; ÖZDERİN, Yasemin; DİŞİBEYAZ, Selçuk; TUNÇ, Bilge; DAĞLI, Ülkü (Turkish Journal of Gastroenterology, 2002)