- Correspondence to Dr Henry LY Chan, Department of Medicine and Therapeutics, 9/F, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong, China;
- Revised January 24, 2011
- Accepted January 25, 2011
- First published February 21, 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.