COVID-19(8) coronavirus(4) SARS-CoV-2(2) pandemic.(2) CPAP(1) favourable(1) Respiratory function test(1) acute respiratory distress syndrome(1) SARS(1) high flow nasal oxygen therapy(1) pneumomediastinum.(1) interleukin-6(1) South Korea(1) respiratory physiology.(1) non-invasive mechanical ventilation(1) limphocytosis(1) pneumonia.(1) machine learning(1) BVF(1) mechanical ventilation(1) Acute respiratory failure(1) Prognosis.(1) nursing homes(1) tocilizumab.(1) spirometry.(1) Lockdown.(1) pandemic(1) Ventilatory support.(1) non-invasive ventilation(1) influenza A subtype H1N1(1)