Funding for this research was provided by:
Babol University of Medical Sciences (*****)
Received: 14 December 2019
Accepted: 2 June 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: The Ethics Committee approved this study of Babol University of Medical Sciences, Babol, Iran. All participants were informed about the purpose of the study, and a written informed consent was obtained from all participants before data collection.
: Not applicable.
: The authors declare that they have no competing interests.