Received: 3 September 2021
Accepted: 3 May 2022
First Online: 11 May 2022
: This is an observational research in practical teaching. The interviews involved obtained subjects’ oral consent, the need for ethics approval was waived. The official document - “A Statement on Ethics Approval and Consent” is issued by the Biomedical Research Ethics Review Committee of Fujian Medical University is also attached for reference.
: Not applicable.
: The authors declare that they have no competing interests.