Best Video Award of The 6th Biennial Congress of the Asian-Pascific-Hepato-Pancreato-Biliary Association and The 29th Meeting of Jaanese Society of Hepato-Biliary-Pancreatic Surgery (Left hepatic trisectionectomy with right hepatic vein, V7, inferior vena cava, and bile duct reconstruction for cholangiolocellular carcinoma)