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. 2019 Aug 23;20:193. doi: 10.1186/s12931-019-1152-5

Fig. 2.

Fig. 2

Serum concentrations of the biomarkers in groups I-V. There are increased the concentrations of LDH A(a), IL-18 (b), and ferritin (f) compared with them of the other groups. *P < 0.05 compared with the other groups. Group I: general MP pneumonia; Group II: refractory MP pneumonia; Group III: general MP pneumonia + viral pneumonia; Group IV: viral pneumonia; Group V: control