- Correspondence to Dr Akihide Watanabe, Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kamigyo-ku, Kyoto, 602-0841, Japan;
- Received May 23, 2013
- Revised August 1, 2013
- Accepted August 27, 2013
- First published September 13, 2013.
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