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Authors
Gao, Rili
Lyu, Xinyi
Yang, Ying
Fu, Jinrong
Zhao, Chuanyu
Guan, Haixia
Ma, Xu
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Funding
Funding for this research was provided by:
National Key Research and Development Program of China (2016YFC1000307)
Chinese Academy of Medical Sciences Innovation Fund (2018-I2M-1-004)
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Article History
Received: 15 October 2023
Accepted: 22 January 2024
First Online: 11 March 2024
Declarations
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: This study was approved by the Institutional Research Review Board at the National Research Institute for Family Planning in Beijing, China. Written informed consent was provided by every participant before enrollment. This study followed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) reporting guidelines.
: Not required.
: The authors declare no competing interests.
