- Correspondence to Dr Hyun Jin Shin, Department of Ophthalmology, Konkuk University Medical Center, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea;
- Received 11 July 2016
- Revised 28 October 2016
- Accepted 8 November 2016
- Published online 29 November 2016.
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