Under-Five Mortality in Humanitarian Emergencies: A Comparison of Face-to-Face and Mobile Phone Survey Estimates From Burkina Faso. - Dianou K; Masquelier B; Helleringer S; Lankoandé B; Soura AB; Billa O; Compaoré Y; Reniers G (Tropical medicine & international health : TM & IH, 2026)