6. Adequate hematologic function, as defined by neutrophils ≥ 1.0 x 10^9/L and platelets ≥ 50 x 10^9/L; patients with neutrophils < 1.0 x 10^9/L due to marrow infiltration are allowed to receive growth factors to bring pre-treatment neutrophils to ≥ 1.0 x 10^9/L.