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Authors
Li, Dan
Zhang, Jian
Yang, Jinjuan
Xu, Yongjian
Lyu, Ruoxi
Zhong, Lichen
Wang, Xiao
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Article History
Received: 4 July 2021
Accepted: 17 May 2022
First Online: 3 June 2022
Declarations
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: The CLDS 2016 has got the approval for interviewing respondents by the Biomedical Ethics Review Committee of Yat-sen University, and the informed consent was required to sign by the participants (available online: ExternalRef removed<u>).</u> The study methodology was carried out in accordance with approved guidelines.
: Not applicable.
: The authors declare that they have no competing interests.
