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Authors
Chang, Xiaopan
Li, Shuai
Li, Kang
Cao, Guoqing
Zhang, Xi
Li, Shuai
Yang, Dehua
Tang, Shaotao
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Funding
Funding for this research was provided by:
National Health and Family Planning Commission of the People's Republic of China (No.201402007)
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Article History
Accepted: 26 March 2021
First Online: 21 April 2021
Declarations
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: Author Xiaopan Chang, Shuai Li, Kang Li, Guoqing Cao, Xi Zhang, Dehua Yang and Shaotao Tang declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
