Received: 25 February 2021
Accepted: 19 April 2021
First Online: 30 April 2021
: The details of this study were initially explained to the patients, and then, the written informed consents were taken from all of them. The study protocol was approved by the ethics committee of Babol University of Medical Sciences (code: IR.MUBABOL.REC.1399.223). The patients’ information was kept confidential.
: The written informed consent was obtained from all research participants after a full explanation of the study.
: The authors declare that they have no competing interests.