Received: 15 March 2018
Accepted: 29 August 2019
First Online: 9 September 2019
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. King Abdulaziz University’s ethical and technical committee (Ref: 217–17) approved this study, and all participants provided written informed consent prior to participation.
: Not applicable
: The authors declare that they have no competing interests.