Funding for this research was provided by:
Mashhad University of Medical Sciences (990253)
Received: 19 March 2021
Accepted: 21 July 2021
First Online: 27 July 2021
: The study was approved by the ethical committee of Mashhad University of Medical Sciences with the reference number IR.MUMS.REC.1399.215. As well as, informed consent was not required to be obtained due to the nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.