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Authors
Shen, Xingrong
Xiao, Siyi
Liu, Rong
Tong, Guixian
Liu, Tongzhu
Wang, Debin https://orcid.org/0000-0002-9708-9659
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (72004002)
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Article History
Received: 29 January 2021
Accepted: 3 March 2021
First Online: 12 March 2021
Declarations
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: The study protocol had been reviewed and approved by Anhui Medical University Biomedical Ethics Committee (ref: 20200936). This approved protocol clearly states: (a) participation and withdrawal from the study is voluntary; (b) at the beginning of recruitment, a consent from (Additional file ) will be signed (for those who are literate) or ticked (for those who are illiterate) by the participants; and (c) confidentiality of all informant information is strictly enforced.
: Not applicable.
: The authors declare that they have no competing interests.
