Huang, Yiman
Su, Xiaoyou http://orcid.org/0000-0002-4216-2142
Si, Mingyu
Xiao, Weijun
Wang, Hao
Wang, Wenjun
Gu, Xiaofen
Ma, Li
Li, Jing
Zhang, Shaokai
Ren, Zefang
Qiao, Youlin
Article History
Received: 27 May 2021
Accepted: 14 October 2021
First Online: 27 October 2021
Declarations
:
: This study has been approved by the Ethics Committee of Jining Medical University of Shandong Province on February 12th, 2020 (approval number: JNMC-2020-KY-001). An electronic informed consent was provided before the start of the questionnaire survey, upon completion of the informed consent, participants filled in the on-line questionnaire. We confirm that informed consent has been obtained from all participants. And all methods in this study were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.