Effect of daphnetin on various haematological paramenters in benzene induced leukaemic rats. A, HCT; B, WBC; C, RBC; D, Hb; E, MCV; F, MCH; G, MCHC; H, PLT. The data are shown as mean±SEM. *P<0.05,*P<0.01 and ***P<0.001 compared with the benzene induced leukaemia rats.