Comparison of biological markers according to mHLA-DR D7 before anti-CD19 CAR T-cell infusion. Biological markers included lymphocytes (A), monocytes (B), LDH (C), CRP (D), ferritin (E), IL-6 (F), TNFα (G), IFNγ (H), IL-2sR (I), and IL-10 (J). The Mann-Whitney U test was used to calculate P values.