Toba Isaac Olatoye, Ruth Ifeoluwa Afolabi, Dorcas Oluwaseun Aloba, and Isaac Adeola Oriyomi reviewed Beyond coverage: can vaccination reduce child mortality despite structural inequality? A global ecological analysis of routine childhood immunization (2010–2023) HealthImmunologyPediatrics, Perinatology and Child Health Review published March 2, 2026 Preprint server medRxiv