Absolute neutrophil count (ANC) >= 1,000/uL Absolute neutrophil count (ANC) > 750/uL Absolute neutrophil count (ANC) >= 1000/uL Absolute neutrophil count (ANC) >= 1,500/uL Absolute neutrophil count (ANC) >= 1.5 x 10^9/L Peripheral absolute neutrophil count (ANC) >= 1,000/uL Peripheral absolute neutrophil count (ANC) >= 750/uL Absolute neutrophil count >= 1,000/uL (unsupported), within 14 days of registration and within 7 days of the start of treatment Absolute neutrophil count (ANC) >= 1000/uL Absolute neutrophil count (ANC) >= 1500/uL Absolute neutrophil count (ANC) >= 1,200/ul Absolute neutrophil count (ANC) >= 1.5 x 10^9/L Absolute neutrophil count >= 1,500/uL Absolute neutrophil count >= 1500/ul Absolute neutrophil count (ANC) >= 1000/ul (unsupported) Absolute neutrophil count (ANC) >= 1.0 x 10^9/L Absolute neutrophil count (ANC) >= 1.2 x 10^9/L Absolute neutrophil count (ANC) >= 1.2 x 10^9/L, within 2 weeks of the first dose of study treatment Absolute neutrophil count (ANC) >= 1500/uL Absolute neutrophil count (ANC) >= 1.2 x 10^9/L Absolute neutrophil count (ANC) >= 1000/uL Absolute neutrophil count (ANC) >= 1.5 x 10^9/L Absolute neutrophil count >= 1,500/uL Absolute neutrophil count >= 1500/uL; Note: no transfusions are permitted 7 days prior to laboratory studies to determine eligibility Absolute neutrophil count (ANC) >= 1,200/ul Absolute neutrophil count (ANC) >= 1,500/uL, obtained within 4 weeks prior to randomization Absolute neutrophil count (ANC) >= 1.2 x 10^9/L Absolute neutrophil count (ANC) >= 1,500/ul Absolute neutrophil count (ANC) >= 1,500/uL Absolute neutrophil count >= 1,500/uL Absolute neutrophil count >= 1000 cells/uL INCLUSION CRITERIA FOR STRATUM C: Absolute neutrophil count >= 1000 cells/uL Absolute neutrophil count >= 1,500/uL Absolute neutrophil count (ANC) >= 1,500 Absolute neutrophil count > 1,500/uL Absolute neutrophil count >= 1,500/uL Absolute neutrophil count (ANC) >= 1.5 x 10^9/L Peripheral absolute neutrophil count (ANC) >= 750/uL Absolute neutrophil count (ANC) > 1,500/uL Absolute neutrophil count (ANC) >= 1.5 x 10^9/L Peripheral absolute neutrophil count (ANC) >= 1000/uL Absolute neutrophil count (ANC) >= 1500/uL Absolute lymphocyte count (ALC) >= 800/uL Absolute neutrophil count (ANC) >= 1.2 x 10^9/L Absolute neutrophil count (ANC) >= 1.5 x 10^9 /L Absolute neutrophil count >= 1,500/uL