1. Salvatore V, Trabalza F, Casadei L, Giostra F (2022) CovHos score for predicting severe respiratory failure in COVID-19 patients presenting at the emergency department. Intern Emerg Med 24:1–7. https://doi.org/10.1007/s11739-022-03006-9
2. Salvatore V, Gianstefani A, Farina G, Carletti I, Carpentieri N, Tinuper AL et al (2021) CovHos, a new score to predict the need of hospitalization for coronavirus disease 2019 (COVID-19) patients at the emergency department. Cureus 13(10):e18717
3. Royal College of Physicians. National Early Warning Score (NEWS): Standardising the assessment of acute-
illness severity in the NHS. Report of a working party. London: RCP, 2012
4. Royal College of Physicians. National Early Warning Score (NEWS) 2: Standardising the assessment of
acute-illness severity in the NHS. Updated report of a working party. London: RCP, 2017
5. Roca O, Messika J, Caralt B, García-de-Acilu M, Sztrymf B, Ricard JD, Masclans JR (2016) Predicting success of high-flow nasal cannula in pneumonia patients with hypoxemic respiratory failure: the utility of the ROX index. J Crit Care 35:200–205. https://doi.org/10.1016/j.jcrc.2016.05.022