Article History
Accepted: 9 December 2020
First Online: 6 January 2021
Compliance with Ethical Standards
: The research protocol was approved by the local Ethics Committee of Bu-Ali Sina University and informed consent was obtained from all participants.
: The study has been performed under the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: The authors declare that they have no conflict of interest.