1. Presenting characteristics, comorbidities, and outcomes among 5700 patients hospitalized with COVID-19 in the New York city area;Richardson;JAMA,2020
2. Tracheotomy: clinical review and guidelines;De Leyn;Eur J Cardiothorac Surg,2007
3. Tracheostomy in critically ill patients;Mallick;Eur J Anaesthesiol,2010
4. Baseline characteristics and outcomes of 1591 patients infected with SARS-CoV-2 admitted to ICUs of the Lombardy region, Italy;Grasselli;JAMA,2020
5. Clinical course and outcomes of critically ill patients with SARS-CoV-2 pneumonia in Wuhan, China: a single-centered, retrospective, observational study;Yang;Lancet Respir Med,2020