- 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 July 31, 2012
- Revised December 4, 2012
- Accepted December 25, 2012
- First published February 1, 2013.
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