Differential diagnoses in COVID-19 pandemic: a retrospective descriptive study. Italian Journal of Medicine, [S. l.], v. 15, n. 1, 2020. DOI: 10.4081/itjm.2020.1410. Disponível em: https://www.italjmed.org/ijm/article/view/itjm.2020.1410. Acesso em: 16 jul. 2025.