1 Department of Colorectal Surgery, Singapore General Hospital, Singapore

2 Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore

Funding/Support: None reported.

Financial Disclosure: None reported.

Correspondence: Isaac Seow-En, F.R.C.S., Department of Colorectal Surgery, Singapore General Hospital, Outram Rd, Singapore 169608, Singapore. Email: [email protected]