- Correspondence to Dr Yuh-Shin Chang, Department of Ophthalmology, Chi Mei Medical Center, 901 Zhonghua Rd, Yongkang District, Tainan 71004, Taiwan;
- Received December 20, 2016
- Revised August 3, 2017
- Accepted August 21, 2017
- First published August 30, 2017.
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.