7. Acceptable hematologic status within two weeks prior to patient registration, including: a) Absolute neutrophil count ([segmented neutrophils + bands] x total WBC)> 1500/mm3 b) Total lymphocyte count < 5,000/mm3 for patients with small lymphocytic lymphoma (IWFA) c) Platelet counts> 150,000/mm3, these patients will receive a dose of 0.4 mCi/kg of Zevalin d) Platelet counts from 100,00/mm3 to 149,000/mm3, these patients will receive a 0.3mCi/kg dose of Zevalin