1 Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan. ahmedhammad2005@yahoo.com.
2 Department of General Surgery, Mansoura University, Mansoura 35516, Egypt. ahmedhammad2005@yahoo.com.
3 Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan. kaido@kuhp.kyoto-u.ac.jp.
4 Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan. dr.vusal@outlook.com.
5 L'AORN Children's Hospital Santobono and Pausilipon, Napoli 80122, Italy. cla.mandato@gmail.com.
6 Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan. uemoto@kuhp.kyoto-u.ac.jp.