Stakeholder perceptions of political and economic factors influencing vaccination in two States with a high burden of zero-dose children in Nigeria. - Akande TM; Bolarinwa OA; Salaudeen AG; Dahab M; Adesoro O; Khogali A; Ahmar S; Ahmed T; Makunja S; McGowan CR; Abdelmagid N (Health policy and planning, 2026)