Assessment Of Primary Immunization Coverage Among The Children Aged 12 - 23 Months In Urban Area Of Bhagalpur City. Journal of Pharmaceutical Negative Results, [S. l.], p. 967–973, 2023. DOI: 10.47750/pnr.2023.14.02.122. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/7374.. Acesso em: 9 jun. 2026.