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Article History

Received: 23 February 2018

Accepted: 14 August 2018

First Online: 12 September 2018

Ethics approval and consent to participate

: The Médecins Sans Frontières Ethics Review Board approved the study protocol (ID #1423). At all times this study was performed in accordance with the principles of the Declaration of Helsinki. Voluntary, informed written consent was sought from all participants and their caregivers when applicable.

: This article does not use individual participant’s data in any form (including images, videos, voice recordings etc). Participant data is aggregated and presented de-identified. To publish under these provisions we received permission from the above ERB.

: The authors declares that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.