- Correspondence to Dr Chi Chiu Mok, Department of Medicine, Tuen Mun Hospital, Hong Kong;
- Received August 11, 2014
- Revised November 4, 2014
- Accepted December 7, 2014
- First published December 30, 2014.
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.