Funding for this research was provided by:
Golestan University of Medical Sciences
Received: 13 April 2020
Accepted: 2 November 2020
First Online: 17 November 2020
Ethics approval and consent to participate
: Generalities of the research were approved in Research Council of Golestan University of Medical Sciences and the National Ethics Committee in Biomedical Research with a code of IR.GOUMS.REC.1398.384.
: Not applicable.
: The authors declare that they have no competing interests.