Funding for this research was provided by:
Wellcome Trust (105831/Z/14/Z)
Medical Research Council (MR/M011569/)
Bill and Melinda Gates Foundation (OPP1117728)
Text and Data Mining valid from 2018-04-18
Received: 9 March 2018
Accepted: 12 April 2018
First Online: 18 April 2018
Ethics approval and consent to participate
: At the UK site, the study was approved by the NHS Research Ethics Committee (REC Reference 14/NW/1460). At the Malawi site, approved the study was approved by research ethics committee of Malawi College of Medicine, under approval number P.03/16/1907. All participants provided written informed consent.
: The authors declare that they have no competing interests.
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