Received: 20 February 2022
Accepted: 12 July 2022
First Online: 25 July 2022
: This research was accepted by the ethical review of the Ethics Committee of Ya’an Municipal Personnel Hospital,and ethical approval number: 202015. Participants provided written informed consent prior to being interviewed for the study.All methods were performed in accordance with the relevant guidelines and regulations.All methods were performed in accordance with the guidelines and regulations in the Declaration of Helsinki to promote ethical standards and respect for the participants that ensured their safety and protected their health and rights.
: Not applicable.
: The authors declare that they have no competing interests.