For citations:
Makarov E.S., Nechushkin M.I., Gladilina I.A., Vishnevskiy V.A. Epidemiological and biomolecular aspects of portal cholangiocarcinoma (literature review). Annaly khirurgicheskoy gepatologii = Annals of HPB Surgery. 2018;23(2):111-118. (In Russ.) https://doi.org/10.16931/1995-5464.20182111-118