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Authors
Wang, Meirong
Xu, Xiaojingyuan
Huang, Yafang
Shao, Shuang
Chen, Xiaolei
Li, Jing
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Funding
Funding for this research was provided by:
Capital General Practice Research Project (17QK05)
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Article History
Received: 13 November 2019
Accepted: 10 May 2020
First Online: 16 May 2020
Ethics approval and consent to participate
: This study was approved by the Medical Ethics Committee of Capital Medical University, Beijing, China. Written informed consent was obtained from each participant involved in this study. All participant information was kept confidential.
: Not applicable.
: The authors declare that they have no competing interests.
