Funding for this research was provided by:
Zahedan University of Medical Sciences (IR.ZAUMS.REC.1399.)
Received: 8 June 2020
Accepted: 23 October 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study protocol was approved by the ethics committee of Zahedan University of Medical Sciences (IR.ZAUMS.REC.1399.122) and written consent was obtained from the patients or their guardians.
: Not applicable.
: No conflict of interest.