Endoscopic treatment of primary sclerosing cholangitis - PARLAK, Erkan; ÖZDAL KURAN, Sedef; DİŞİBEYAZ, Selçuk and ÇİÇEK, Bahattin and OĞUZ, Dilek and ŞAHİN, Burhan (Turkish Journal of Gastroenterology, 2004)