Funding for this research was provided by:
Nature and Science Foundation of Zhejiang Province, (LY17H120008)
Received: 20 July 2018
Accepted: 30 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: This study is approved by the institutional review board of the affiliated Eye Hospital of Wenzhou Medical University. The written informed consents were achieved from all patients.
: Not applicable.
: The authors declare that they have no competing interests.
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