Continuing Barriers to Optimum Immunization Uptake in Nigerian Children: the Role of Missed Immunization Opportunities and Inappropriately Timed Immunizations. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 34, n. 3&4, 2024. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/575.. Acesso em: 22 jan. 2025.