- Correspondence to Matthew James Lee, Department of General Surgery, Northern General Hospital, Sheffield Teaching Hospitals, Sheffield, UK;
- Received 31 May 2017
- Revised 7 August 2017
- Accepted 19 August 2017
- Published online 23 September 2017.
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.