Funding for this research was provided by:
The school-level teaching reform project for international students fund in Binzhou Medical University (JYKTLX202286, JYKTLX202286, JYKTLX202286, JYKTLX202286)
Received: 16 November 2022
Accepted: 14 April 2023
First Online: 20 April 2023
: This study was conducted in accordance with the Declaration of Helsinki. Students volunteered to participate in the questionnaire. Data collection was anonymous. No images or other personal or clinical details of participants are presented. The study was approved by the ethics review board of Binzhou Medical University. Informed consent was obtained from all subjects.
: Not applicable.
: The authors declare no competing interests.