Received: 2 May 2021
Accepted: 31 August 2021
First Online: 14 September 2021
: This study was performed based on the Declaration of Helsinki guidelines and was approved by the Ethics Committee of Tehran University of Medical Sciences (Approval No: IR.TUMS.VCR.REC.1398.1000. The written informed consent was signed by all participants before enrolling in the study.
: The authors declare that they have no competing interests.