Exploring heterogeneity in treatment effects: The impact and interaction of asset-based wealth and mass azithromycin distribution on child mortality - Elisabeth A. Gebreegziabher; Ali Sié; Mamadou Ouattara; Mamadou Bountogo; Boubacar Coulibaly; Valentin Boudo; Thierry Ouedraogo; Elodie Lebas; Huiyu Hu; Pearl Anne Ante-Testard; Steven E. Gregorich; Kieran S. O’Brien; et al. (PLoS ONE, 2026)