PATTNAIK, S.; SHARMA, D.; RAO, D. M. M. COVID-19 vaccination among elderly population in a rural area: coverage and hesitancy study. International Journal Of Community Medicine And Public Health, [S. l.], v. 8, n. 12, p. 6179–6180, 2021. DOI: 10.18203/2394-6040.ijcmph20214624. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/8873. Acesso em: 15 feb. 2026.