Sadettin Hülagü; Göktuğ Şirin; Ali Erkan Duman; Hasan Yılmaz. Use of SpyGlass for Peroral Cholangioscopy in the Diagnosis and Treatment of Hepatobiliary Diseases in over Five Years Follow-Up: A Single Centre Experience. Turkish Journal of Gastroenterology 2019, 30, 1044-1054.