AMBROSIO, Luigina et al. SARS-CoV-2 variants: what have we learnt so far?. Annali dell’Istituto Superiore di Sanità, Rome, IT, v. 58, n. 2, p. 81–84, 2022. Disponível em: https://annali.iss.it/index.php/anna/article/view/1470. Acesso em: 22 nov. 2024.