- Correspondence to Professor James Y W Lau, Department of Surgery, Prince of Wales Hospital, the Chinese University of Hong Kong, Shatin Hong Kong, China;
- Received January 22, 2018
- Revised May 3, 2018
- Accepted May 4, 2018
- First published May 25, 2018.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.