Epidemiological protection factor of AstraZeneca and Sputnik V vaccine in inhabitants of the department of Chontales. Nicaragua. Revista Científica Estelí, [S. l.], n. 42, p. 53–67, 2022. DOI: 10.5377/farem.v11i42.14687. Disponível em: https://revistas.unan.edu.ni/index.php/Cientifica/article/view/2051. Acesso em: 7 aug. 2025.