Received: 25 October 2019
Accepted: 28 February 2020
First Online: 7 April 2020
Ethics approval and consent to participate
: Institutional Review Boards of King Abdullah International Medical Research Center (Riyadh) waived the ethics approval because no identifying patient information was used during this study. No names, patient numbers, photos, person statements, etc. were used during this study.
: Not applicable.
: The authors declare that they have no competing interests.