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Authors
Feng, Chuanteng
Yu, Bin
Fu, Yao
Reinhardt, Jan D.
Yang, Shujuan https://orcid.org/0000-0002-6929-4823
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81703279)
Sichuan Provincial foundation for AIDS prevention and control (2021ZC01; 2018-WJW-03; 2020zc05; 2020zc04; 2019sc01)
Shaanxi Bureau of Science and Technology (2021SF-347)
Liangshan Key R & D projects of science and technology (2021DYF0045)
Liangshan AIDS/HIV prevention project (H170614; H161236)
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Article History
Accepted: 4 May 2022
First Online: 7 June 2022
Declarations
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: The authors declare that they have no conflict of interest.
: This study was approved by the ethics committee of West China Institute of public health and the fourth hospital of West China (Gwll2021033, 3 March 2017), and was carried out according to the declaration of Helsinki 1964.
: Participation was voluntary and informed consent was obtained from all participants. This was written consent or witnessed verbal consent in the case of illiteracy of the participant. Witnesses were professionals from the respective health centers who were otherwise not involved in the study. Participants received no payment for their participation in the study.
: Not applicable.
