Received: 26 February 2021
Accepted: 30 September 2021
First Online: 13 October 2021
: The Institutional Review Board (IRB) of An-Najah National University approved this study. All study participants provided verbal informed consent in compliance with the IRB requirement after they were told of the general objectives of the study and their confidentiality and privacy were assured. The ethics committee approved receiving only verbal consent. Since the study did not require any therapeutic intervention, participants were given informed verbal consent rather than written consent. Participation in this study was clearly below the minimum risk.
: Not applicable.
: The authors declare that they have no competing interests.