*Department of Surgery, Division of Hepatobiliary Surgery and Liver Transplantation, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

†Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea

‡Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea

§Department of Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH

∥Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea

¶Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook, National University Hospital, Daegu, Republic of Korea

#Department of Surgery, Daegu Catholic University Hospital, School of Medicine Catholic University of Daegu, Daegu, Republic of Korea

The authors report no conflicts of interest.

[email protected], [email protected]

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