Funding for this research was provided by:
Mashhad University of Medical Sciences (85134)
Received: 17 March 2020
Accepted: 11 May 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: Informed consent was obtained from all subjects using protocols approved by the Ethics Committee of the Mashhad University of Medical Sciences. All participants were able to read and understand and were willing to provide written, informed consent.
: Not applicable.
: The authors declare no conflict of interests.