Effect of COVID-19 Pandemic on Immunisation Programmes in Ibadan Metropolis, Southwest Nigeria. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 53, n. 2, p. 189–193, 2026. DOI: 10.63270/. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/1364.. Acesso em: 18 jul. 2026.