Funding for this research was provided by:
United Kingdom Clinical Research Collaboration (Medical Research Council grant MR/P025102/1.)
National Institute for Health Research (17/63/125)
Received: 29 May 2020
Accepted: 17 November 2020
First Online: 26 November 2020
Ethics approval and consent to participate
: The study received ethical approval from An-Najah National University (ANNU), London School of Hygiene and Tropical Medicine (LSHTM), and the University of Bristol (UoB).Consent to participate: Written informed consent to publish non-identifiable data was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.