- Correspondence to Professor Hee Yoon Cho, Department of Ophthalmology, Hanyang University College of Medicine Hanyang University Guri Hospital, Guri-si, Gyeongchun-ro 153, Guri-city, Gyeonggi-do 471-701, South Korea;
- Accepted July 30, 2012
- First published August 28, 2012.
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