Ambrosio, Luigina, Matteo Chiara, Alessandra Lo Presti, Piero Poletti, Claudia Alteri, Davide Cacchiarelli, Valentina Bouchè, et al. “SARS-CoV-2 Variants: What Have We Learnt so Far?”. Annali dell’Istituto Superiore di Sanità 58, no. 2 (June 13, 2022): 81–84. Accessed November 22, 2024. https://annali.iss.it/index.php/anna/article/view/1470.