1. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Atrium Health, Charlotte, North Carolina, USA.
2. Department of Surgery, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
3. Division of Hepatobiliary and Pancreas Surgery, Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA.
4. Department of Surgery, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.