- Correspondence to Dr Tae Gon Lee, Department of Ophthalmology, Kim's Eye Hospital, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul 150-034, South Korea;
- Received September 29, 2013
- Revised February 1, 2014
- Accepted March 2, 2014
- First published March 21, 2014.
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