Impact of COVID-19 pandemic on immunization services in Nigeria; A preliminary report by Paediatric Association of Nigeria (PAN). NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 47, n. 3, p. 288–295, 2024. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/60.. Acesso em: 18 nov. 2024.