Funding for this research was provided by:
Deanship of Scientific Research, King Saud University (RG-1438-085)
Received: 20 May 2020
Accepted: 26 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: The study has been performed as per the Declaration of Helsinki. The Institutional Review Board of the University of California, San Francisco, and its affiliates approved the study. Written informed consent was obtained from individual participants before enrollment into the study.
: Not Applicable.
: The authors declare that they have no competing interests.