Funding for this research was provided by:
Roche Products Saudi Arabia
Received: 20 July 2020
Accepted: 23 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Boards (IRBs) of the 3 study sites: King Faisal Specialist Hospital and Research Center Gen.Org. (Jeddah) [Reference number: RC-J/301/37], King Abdullah International Medical Research Center [KAIMRC]—King Abdulaziz Medical City (Riyadh) [Reference number: IRBC/881/16], and King Fahad Specialist Hospital (Dammam) [Reference number: IRB-ONC0336]. In case of a request for accessing the medical records at any of the study sites, a written approval from the IRB of that site would be needed as per each IRB’s requirements.
: Not applicable.
: The authors declare that they have no competing interests.