Received: 24 June 2020
Accepted: 18 January 2021
First Online: 22 January 2021
Ethics approval and consent to participate
: The study was approved by the ethical committee of Shahid Beheshti University of Medical Sciences, Tehran, Iran under the Ethics code of IR.SBMU.MSP.REC.1399.24.
: Not applicable.
: The authors declare that they have no competing interests.