DIMITROV, I.; SAZDOV, D. Effect of vaccination and number of doses on disease severity and mortality in Covid -19 positive hospitalized patients. Archives of Public Health, [S. l.], v. 15, n. 1, p. 71–83, 2023. DOI: 10.3889/aph.2023.6098. Disponível em: https://id-press.eu/aph/article/view/6098. Acesso em: 16 jul. 2024.