Absence of peripheral blood abnormalities in gp130^Y757F/Y757F:Stat3^+/- mice. (A) Platelet counts and (B) WBC differentials on gp130^+/+ (□), gp130^Y757F/Y757F (▪), and gp130^Y757F/Y757F:Stat3^+/- (▦) mice. Data from 5 mice of each genotype are expressed as the mean ± SD. ^*P < .05 versus data from gp130^+/+ mice. N indicates neutrophils; L, lymphocytes; M, monocytes; and E, eosinophils.