506U78 in Treating Patients With Chronic Lymphocytic Leukemia That Has Not Responded to Fludarabine or Alkylating Agents

Long Island Jewish Medical Center, New Hyde Park

Lombardi Cancer Center, Washington D.C.

Medicine Branch, Bethesda

Greenville Hospital System, Greenville

Washington University School of Medicine, St Louis

University of Arkansas for Medical Sciences, Little Rock

Physician Reliance Network, Inc., Dallas

Clinical Studies, Ltd., Denver

Arizona Cancer Center, Tucson

Cedars-Sinai Medical Center, Los Angeles

Scripps Clinic, La Jolla

Sidney Kimmel Cancer Center, San Diego

University of Alabama at Birmingham Comprehensive Cancer Center, Birmingham

Jonsson Comprehensive Cancer Center, UCLA, Los Angeles

Walter Reed Army Medical Center, Washington D.C.

Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago

University of Chicago Cancer Research Center, Chicago

Holden Comprehensive Cancer Center at The University of Iowa, Iowa City

Johns Hopkins Oncology Center, Baltimore

St. Joseph's Hospital and Medical Center, Paterson

Ireland Cancer Center, Cleveland

University of Texas - MD Anderson Cancer Center, Houston