Fludarabine, Cyclophosphamide, and Rituximab Versus Pentostatin, Cyclophosphamide, and Rituximab in Previously Untreated or Treated B-Cell Chronic Lymphocytic Leukemia Patients

New York Oncology Hematology, PC, Albany

Medical Oncology Associates, Kingston

Alliance Hematology Oncology PA, Westminster

Northwestern Carolina Oncology Hemato, Hickory

Cancer Centers of Florida, P.A., Ocoee

Hope Center, Terre Haute

St Joseph Oncology, Inc, Saint Joseph

Texas Oncology Cancer Center-Sugar Land, Sugar Land

South Texas Cancer Center-McAllen, McAllen

Yakima Valley Mem Hosp/North Star Lodge, Yakima

Cancer Care Northwest-South, Spokane