About the Authors
Unité de Recherche sur les Enjeux et Pratiques Humanitaires (UREPH), Médecins Sans Frontières, Genève, Switzerland
The author has declared that no competing interests exist.
Wrote the first draft of the manuscript: PhC. Contributed to the writing of the manuscript: PhC. ICMJE criteria for authorship read and met: PhC. Agree with manuscript results and conclusions: PhC.