| January | February |
|---|---|
| respiratory failure | psychiatric |
| asthma | respiratory failure |
| respiratory distress syndrome | asthma |
| acute respiratory syndrome coronavirus | respiratory distress syndrome |
| tumor | venous thromboembolism |
| acute kidney injury | acute respiratory syndrome coronavirus |
| dry cough | pulmonary embolism |
| thrombotic | chronic diseases |
| thromboembolic | tumor |
| lymphopenia | thrombolic |