Chemaitelly, Hiam
Weiss, Helen A.
Calvert, Clara
Harfouche, Manale
Abu-Raddad, Laith J. https://orcid.org/0000-0003-0790-0506
Funding for this research was provided by:
Qatar National Research Fund (NPRP 9-040-3-008)
UK Medical Research Council (MRC) and the UK Department for International Development (DFID) under the MRC/DFID Concordat agreement (K012126/1)
Article History
Received: 17 February 2019
Accepted: 22 May 2019
First Online: 24 June 2019
Ethics approval and consent to participate
: Not applicable
: Not applicable
: The authors declare that they have no competing interests.