Robotic and open resection of the liver and bile ducts for perihilar cholangiocarcinoma. Comparative analysis of the short-term outcomes. (April 2022) - Elizarova, Natalia; Efanov, Mikhail; Alikhanov, Ruslan; Kazakov, Ivan; Melekhina, Olga; Kulezneva, Yuliya; Koroleva, Anna; Vankovich, Andrey; Khatkov, Igor