Deng, Jianjun
Li, Tsingan
Wang, Jiali
Teng, Limei
Article History
Received: 26 January 2021
Accepted: 1 July 2021
First Online: 27 July 2021
Declarations
:
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of University BNU. Informed consent was obtained from all participants included in the study. Participants read the instructions for the questionnaire and decided whether they wanted to proceed.
: Not applicable.
: The authors have no conflicts of interest to declare that are relevant to the content of this article.