Sample no.  Age group, gender  Hospitalization, clinical, radiological, and histological characteristics
I  60–70, F  5-10d, GGO, DAD
II  80–90, M  5-10d, C, I, DAD
III  90–100, M  1-4d, GGO, C, DAD
IV  70–80, M  1-4d, NIV, S, GGO, C, DAD
V  60–70, M  5-10d, NIV, S, GGO, C, DAD
VI  70–80, M  1-4d, S, GGO, C, DAD
CTRL  20–30, M  -