Received: 10 January 2018
Accepted: 27 August 2018
First Online: 6 September 2018
Ethics approval and consent to participate
: All of the participants were minors and their legal guardians provided written consent for them to take part in the study. This consent procedure and the study were reviewed and approved by the Medical Ethical Committee of the University of Lubumbashi, Lubumbashi, the DRC (UNILU/CEM/048/2015), in compliance with the principles of the Helsinki Declaration II. The aim and the procedures of the study were explained to the participants. The participants were informed that they could withdraw anytime without further obligation. The informed written consent to participate and for the publication of individual clinical details was obtained from the parent/guardians of the child.
: Not applicable.
: The authors declare that they have no competing interests.
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