Received: 27 May 2019
Accepted: 25 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: The study protocol was approved by the institutional review board of King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia. No administrative permission were required to access data.
: Not applicable.
: AH works at Pfizer, anti infectives.