For citations:
Shuleshov A.G., Fomicheva N.V., Ulyanov D.N., Balalykin A.S., Danilov D.V., Rozovsky M.I. Cholangioscopy in diagnosis of diseases of extrahepatic bile ducts. Medical alphabet. 2019;1(6):30-36. (In Russ.) https://doi.org/10.33667/2078-5631-2019-1-6(381)-30-36