Received: 7 May 2020
Accepted: 10 November 2020
First Online: 14 January 2021
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Zabol University of Medical Sciences (IR.ZBMU.REC.1396.160). The students also gave verbal consent to participate in the survey. The process of obtaining verbal consent was explained to and approved by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.