Fish occurrence in the Kama River Basin (Russia).

Background: Dataset contains information on fish occurrences in the Kama River Basin (Russian Federation). The Kama River is the largest tributary (1805 km) of the Volga River and is geographically often considered the main river due to the larger volume of water at their confluence.

New Information: Dataset is based on our own field studies conducted during 2008-2021.

[Endoscopic peroral pancreatico-cholangioscopy in the diagnosis of diseases of bile ducts and the pancreas].

Till nowadays the diagnosis of biliary and pancreatic ducts disorders remains to be rather difficult. Cholangioscopy is the only method, that gives an opportunity of visual evaluation of the ducts. The results of 234 retrograde peroral pancreatico-cholangioscopies (RPCS) in 149 patients are analysed.