Received: 1 March 2021
Accepted: 10 May 2021
First Online: 26 May 2021
: This work received ethical approval from the Institutional Review Board of China Medical University and Hospital (CMUH105-REC3–001). All participants provided written statements of informed consent. All the study protocol for involving humans was in accordance to guidelines of Declaration of Helsinki in the manuscript.
: Not applicable.
: Blossom Yen-Ju Lin, is a member of the editorial board of BMC Medical Education. All authors declare that they have no competing interests.