Funding for this research was provided by:
Wellcome Trust (DEL-15-01)
Received: 18 September 2018
Accepted: 18 February 2019
First Online: 27 February 2019
Ethics approval and consent to participate
: The study received ethical approval from the University of Malawi, College of Medicine Research and Ethics Committee (COMREC). All participants were provided with the necessary information. Written informed consent was given prior to data collection.
: Not applicable.
: The authors declare that they have no competing interests.
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