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Authors
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Funding
Funding for this research was provided by:
Chinese Medical Association (17020410710)
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Article History
Received: 26 July 2019
Accepted: 25 November 2019
First Online: 9 December 2019
Ethics approval and consent to participate
: The present study was approved by the ethics committee of the Reproductive and Genetic Hospital of CITIC-Xiangya (No. LL-SC-2018-026), and informed consent was obtained from all the participants.
: All authors provided final approval of the version to be published and agree to be accountable for all aspects of the work in ensuring that questions.
: The authors declare that they have no competing interests
