Funding for this research was provided by:
Birjand University of Medical Sciences (5101)
Received: 16 February 2020
Accepted: 18 June 2020
First Online: 27 June 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: Ethical approval was obtained from the Birjand University of Medical Sciences and informed written consent was completed by all participants (code:IR.BUMS.REC.1398.160).
: Informed consent was obtained from all individual participants included in the study.