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Authors
Pan, Qingqing
Cao, Xinxin
Luo, Yaping https://orcid.org/0000-0002-5787-1136
Li, Jian
Feng, Jun
Li, Fang
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Article History
Received: 3 July 2019
Accepted: 7 November 2019
First Online: 27 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional review board of PUMCH (IRB protocol #ZS-1113).
: Informed consent was obtained from all individual participants included in the study.
