Received: 20 April 2021
Accepted: 28 December 2021
First Online: 18 January 2022
: All procedures followed were in accordance with the guidelines released by the curriculum coordinator committee of Tokushima University Faculty of Medicine. The study protocol was approved by the Ethics Committee of Tokushima University Hospital (No. 3935). Informed consent was obtained from all the students and lecturers for study participation.
: Not applicable.
: The authors declare no conflict of interest.