- Correspondence to Dr Manabu Miyata, Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507, Japan;
- Received 13 September 2017
- Revised 27 October 2017
- Accepted 21 November 2017
- Published in print 1 December 2017.
- Published online 2 December 2017.
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