- Correspondence to Dr Dong Ho Park, Department of Ophthalmology, School of Medicine, Kyungpook National University, #50 Samduk-dong-2-ga, Jung-gu, Daegu 700-721, South Korea;
- Received September 18, 2013
- Revised October 15, 2013
- Accepted November 4, 2013
- First published November 20, 2013.
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