Received: 25 May 2019
Accepted: 2 October 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: The IRB at An-Najah National University approved this study. Verbal informed consent was taken from each patient before the interviews were started. Permission from the MOH and ANNUH was also obtained to perform interviews and withdraw blood samples in their institutions. The study protocol was approved (including the verbal consent process) by the IRB and did not require written consent. Patients were asked to provide blood samples and were informed that their information would be coded and anonymised.
: Not applicable.
: The authors declare that they have no competing interests.