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Authors
Yu, Bo
Han, Yue-Hong
Sun, Yin
Zhang, Xu-Dong
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Article History
Received: 11 October 2021
Accepted: 6 January 2022
First Online: 21 January 2022
Declarations
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: This study was conducted according to the guidelines of the Declaration of Helsinki. Written informed consent was obtained from all participants prior to filling in the survey with assurance of confidentiality of the data, and the research was approved by the Medical Ethics Committee of the Kunming University of Science and Technology [KMUST-MEC-086].
: Not applicable.
: The authors declare that they have no competing interests.
