- Correspondence to Dr Ho-Seok Sa, Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea;
- Received January 17, 2018
- Revised June 28, 2018
- Accepted July 1, 2018
- First published July 26, 2018.
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.