Effect of daphnetin on differential of leukocytic count of benzene induced leukaemic rats. A, LYM; B, Neutrophils; C, Blast; D, Monocytes; E, Eosinophils; F, Basophils. The data are shown as mean±SEM. *P<0.05,*P<0.01 and ***P<0.001 compared with the benzene induced leukaemia rats.