The authors regret that one of the author’s affiliations was originally published incorrectly. The original affiliation for Sand Su Lee was given as Department of Surgery, Pusan National University Hospital, Yangsan, Republic of Korea. The correct affiliation is School of Medicine, Pusan National University, Division of Transplant and Vascular Surgery, Department of Surgery, Pusan National University Hospital, Pusan, Republic of Korea.

The authors apologise for the error and the original article has been updated.