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Use of tocilizumab and of high doses of low molecular weight heparin, but not of antivirals (either alone or in combination), azithromycin, and any corticosteroid, was independently associated with lower mortality. 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COVID-19 in Italy - Passing through bitter waters. Eur. Respir. J. [Internet] European Respiratory Society; 2020 [cited 2020 May 24]; Available from: https:\/\/erj.ersjournals.com\/content\/early\/2020\/05\/19\/13993003.01812-2020."},{"key":"243_CR2","doi-asserted-by":"publisher","first-page":"e27","DOI":"10.1016\/S0140-6736(20)31865-1","volume":"396","author":"G Alicandro","year":"2020","unstructured":"Alicandro, G., Remuzzi, G. & Vecchia, C. L. Italy\u2019s first wave of the COVID-19 pandemic has ended: No excess mortality in May, 2020. Lancet Elsevier 396, e27\u2013e28 (2020).","journal-title":"Lancet Elsevier"},{"key":"243_CR3","unstructured":"WHO. Global surveillance for COVID-19 caused by human infection with COVID-19 virus. Interim guidance. 20 March 2020. WHO\/2019-nCoV\/SurveillanceGuidance\/2020.6."},{"key":"243_CR4","unstructured":"Guglielmetti, L., Kontsevaya, I., Leoni, M.C. Severe COVID-19 pneumonia in Piacenza, Italy \u2013 a cohort study of the first pandemic wave. J. 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