Received: 15 August 2020
Accepted: 23 January 2022
First Online: 21 February 2022
: The Ethics Committee of the Shahid Beheshti University of Medical Sciences in Tehran, Iran approved the protocol of this study (code number: IR. SBMU.PHNM.1394.284). Voluntary verbal informed consent is obtained from each participant of this study after explaining the procedures by researcher. This verbal consent was witnessed by a supervisor. Procedures for obtaining informed consent were approved by the abovementioned ethics committees.
: Not applicable.
: The authors declare that they have no competing interests.