Endoscopic dilatation for bile duct stenosis: The application of balloon catheter for endoscopic dilatation treatment of primary sclerosing cholangitis was firstly reported in 1983.

• 胆管狭窄的内镜下扩张：应用气囊导管作内镜下扩张治疗原发性硬化性胆管炎首次报道于1983年。