Received: 31 May 2018
Accepted: 2 July 2018
First Online: 11 July 2018
Ethics approval and consent to participate
: This study (protocol ID, A65892b) underwent ethics review and obtained approval from the WHO Research Ethics Review Committee (ERC). Ethics approval was also locally obtained from Institutional Review Boards of the Universidad Peruana Cayetano Heredia as well as the University of Nairobi/Kenyatta National Hospital.All participants will provide their written, informed consent to participate in this study. In Peru, where participants are under 18 years of age, parents will provide written informed consent and the adolescent participants will provide their written, informed assent.
: The authors declare that they have no competing interests.
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