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Authors
Chen, Haipeng
Shen, Qianling
Zang, Dungang
Li, Houjian
Sow, Yaya
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Article History
Received: 11 March 2021
Accepted: 20 July 2021
First Online: 5 August 2021
Declarations
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: The data involved in this paper are from the dynamic survey database of the labor force of Sun Yat-sen University, which does not involve ethical issues.
: This article does not contain any personal data, so the publication consent is not applicable.
: The authors declare no competing interests.
