Peripheral blood cell counts of dogs (n = 4) following a single subcutaneous dose of AMD3100 (4 mg/kg). (A) White blood cell counts; (B) absolute neutrophil counts; (C) CD34⁺ cell counts; (D) colony-forming unit (CFU) counts. E343 (•), G035 (▴), G272 (+), and G105 (□) depict dog identification numbers.