Author affiliations: World Health Organization, Geneva, Switzerland (L. Cibrelus, K. Fernandez, S. Hugonnet); Ministère de la Santé, Ouagadougou, Burkina Faso (I. Medah, D. Koussoubé, D. Yélbeogo); World Health Organization Intercountry Support Team for West Africa, Ouagadougou (C. Lingani, M. Djingarey)
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