Funding for this research was provided by:
Wellcome Trust (203077, 201866, 103602)
Medical Research Council (MR/M015297/1)
Department for International Development (203155)
Initiative to Develop African Research Leaders, IDeAL (107769)
Received: 25 October 2018
Accepted: 24 January 2019
First Online: 4 February 2019
Ethics approval and consent to participate
: This study used secondary data only, all publicly available to registered users from online data repositories. No individual patient level data used in this publication.
: Not applicable. The manuscript does not contain any individual person’s data.
: The authors declare that they have no competing interests.
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