| COVID-19 | Coronavirus disease 2019 |
| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus type 2 |
| ICU | Intensive care unit |
| CT | computed tomography |
| CXR | chest X-ray |
| US | ultrasound |
| HFNC | high-flow nasal cannula |
| LIMC | low-intensity medical care |
| HIMC | high-intensity medical care |
| GGO— | ground glass opacities |
| CO | consolidations |
| CVD | cardiovascular diseases |
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