Wang, Li-Jun
Wu, Ping
Li, Xiao-Xiao
Luo, Ran
Wang, Deng-Bin
Guan, Wen-Bin
Funding for this research was provided by:
Foundation of Shanghai Municipal Commission of Health and Family Planning (20164Y0114)
National Natural Science Foundation of China (81371621)
Article History
Received: 5 July 2018
Accepted: 30 November 2018
First Online: 17 December 2018
Ethics approval and consent to participate
: This retrospective study was approved by the Institutional Review Board of our Hospital, and the informed consent requirement was waived (Approval No, XHEC-D-2015-153).
: Not applicable
: The authors declare that they have no competing interests.
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