Outcomes of patients with COVID-19 hospitalized during the fourth pandemic wave in relation to their clinical features and vaccination status. Italian Journal of Medicine, [S. l.], v. 16, n. 1, 2022. DOI: 10.4081/itjm.2022.1541. Disponível em: https://www.italjmed.org/ijm/article/view/1541. Acesso em: 23 may. 2025.