OGOUN, P. . The Meaning, Nature and Chronology of Pandemic in 21st Century. European Journal of Health Sciences, [S. l.], v. 6, n. 3, p. 1 - 8, 2021. DOI: 10.47672/ejhs.740. Disponível em: https://ajpojournals.org/journals/index.php/EJHS/article/view/740. Acesso em: 2 may. 2024.