ROY, B.; DHILLON, J.; HABIB, N.; PUGAZHANDHI, B. Global variants of COVID-19: Current understanding. Journal of Biomedical Sciences, [S. l.], v. 8, n. 1, p. 8–11, 2021. DOI: 10.3126/jbs.v8i1.38453. Disponível em: https://nepjol.info/index.php/JBS/article/view/38453. Acesso em: 7 may. 2024.