Funding for this research was provided by:
mashhad university of medical sciences (970861)
Received: 17 July 2021
Accepted: 11 January 2022
First Online: 25 January 2022
: This study was approved by the ethical committee of Mashhad University of Medical Sciences (Number: IR.MUMS.REC. 970861). 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.