KHAN, Sadaf et al. The Big Catch-up: Addressing Zero-Dose Children as a Surrogate of Vaccination Disruptions During Public Health Emergencies. ESI Preprints (European Scientific Journal, ESJ), [S. l.], v. 33, p. 286, 2024. Disponível em: https://esipreprints.org/index.php/esipreprints/article/view/1288. Acesso em: 16 may. 2026.