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Authors
Zhou, Xiangxi
Zhang, Fan
Ao, Yongping
Lu, Chunli
Li, Tingting
Xu, Xianglong
Zeng, Huan
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Article History
Received: 27 December 2020
Accepted: 28 September 2021
First Online: 1 December 2021
Declarations
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: All procedures involving human participants meet the ethical standards of the institution or practice conducting the research. We follow the relevant guidelines to ensure that the research is voluntary and confidential. Written informed consent was obtained before the interview. This study was approved by the biomedical research ethics committee of Chongqing Medical University.
: Not applicable since no individual data was included in the manuscript.
: The authors declare no conflict of interest related to this work.
