- Correspondence to Dr Hao Chen, Eye Hospital of Wenzhou Medical University, 270 West Xueyuan Road, Wenzhou, Zhejiang 325027, China; and Dr Qinmei Wang;
- Received April 13, 2016
- Revised June 23, 2016
- Accepted July 6, 2016
- First published July 28, 2016.
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