- Correspondence to Dr Zhanju Liu, Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China;
- Received February 14, 2015
- Revised August 9, 2015
- Accepted August 10, 2015
- First published September 3, 2015.
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.