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Authors
Huang, Shang
Chen, Hanzhong
Li, Teng
Pu, Xiaoyong
Liu, Jiumin
Bi, Xuecheng http://orcid.org/0000-0002-5922-2682
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Funding
Funding for this research was provided by:
Health and Family Planning Commission of Guangdong Province (B2018208)
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Article History
Received: 15 June 2020
Accepted: 31 October 2020
First Online: 13 January 2021
Ethics approval and consent to participate
: Data extraction and usage has been approved by SEER Program.
: Not applicable.
: Shang Huang and Xuecheng Bi report grant from Health Commission of Guangdong Province, during the conduct of the study.
