Funding for this research was provided by:
Saudi Basic Industries Corporation (-)
King Abdulaziz City for Science and Technology (-)
College of Medicine, King Saud University (-)
Abraaj Capital (-)
Ministry of Health (-)
Text and Data Mining valid from 2019-05-10
Received: 19 September 2018
Accepted: 30 April 2019
First Online: 10 May 2019
Ethics approval and consent to participate
: Reviewed and approved by the Institutional Review Board committee at the King Faisal Specialist Hospital & Research Centre, Riyadh.
: Not applicable.
: The authors declare that they have no competing interests.