Gong, Junming
Ma, Yushan
An, Yunfei
Yuan, Qi
Li, Yun
Hu, Juan
Article History
Received: 4 April 2021
Accepted: 6 October 2021
First Online: 16 October 2021
Declarations
:
: All methods were carried out in accordance with relevant guidelines and regulations. Ethical approval of this study was obtained from the Medical Ethics Committee of the West China Second University Hospital, Sichuan University [YXKY2020LSP(140)] before start of the survey. Informed consent to participate in this study was received from all participants before start of this study.
: Not applicable.
: The authors declare that they have no competing interests.