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Authors
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (71704124)
Humanity and Social Science Youth Foundation of Ministry of Education of China (17YJC630096)
Major Program of the Social Science Foundation of Sichuan (SC18EZD026)
Sichuan University (2018hhf-43)
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Article History
Received: 4 October 2020
Accepted: 19 January 2021
First Online: 3 February 2021
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: This study was approved by the ethics committee of Sichuan University (Ethical Review No: K2019072). The data collection for interviews are anonymized.
Free to read: This content has been made available to all.
