- Correspondence to Dr San-Ni Chen, Department of Ophthalmology, Changhua Christian Hospital, No. 135, Nan-Hsiao St., Changhua City 500, Taiwan;
- Received 13 July 2015
- Revised 26 October 2015
- Accepted 17 November 2015
- Published online 11 December 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.