- Correspondence to Joseph Sung, Institute of Digestive Disease, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong;
- Revised February 9, 2011
- Accepted March 2, 2011
- First published April 6, 2011.
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.