C., S. Immunization coverage under universal immunization programme in Kozhikode district, Kerala. International Journal Of Community Medicine And Public Health, [S. l.], v. 6, n. 9, p. 3667–3672, 2019. DOI: 10.18203/2394-6040.ijcmph20193607. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/5256. Acesso em: 30 mar. 2026.