3. Laboratory testing
Medical laboratory finding results, including the numbers of leucocytes,
lymphocytes, monocytes, eosinophils, basophils, platelets, Alanine
aminotransferase (ALT), aspartate aminotransferase (AST), serum creatine
kinase (CK), serum lactic dehydrogenase (LDH), blood urea nitrogen
(BUN), serum creatinine (Scr), cardiac troponin I, concentrations of
D-dimer, C-reactive protein (CRP), procalcitonin (PCT), erythrocyte
sedimentation rate (ESR), serum ferritin, cytokines (IL-2R, IL-6, IL-8,
IL-10, TNF-α), immune function were collected for each patient from
electronic medical records.