Received: 15 September 2020
Accepted: 24 August 2021
First Online: 6 September 2021
: The study was approved by the Ethics Committee of the School of Medicine of Xi’an Jiaotong University, and the approval number was 20201302. All respondents provided verbal consent to participate in the survey, which was approved by the Ethics Committee.
: Not applicable.
: The authors declare that they have no competing interest.