- Correspondence to Dr Yasuo Yanagi, Department of Ophthalmology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan;
- Received August 25, 2014
- Revised January 7, 2015
- Accepted January 19, 2015
- First published February 26, 2015.
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