Leukemia, Lymphocytic, Chronic, B-Cell

• St. Joseph Hospital Regional Cancer Center - Orange — Orange, California, United States
• Robert H. Lurie Comprehensive Cancer Center at Northwestern University — Chicago, Illinois, United States
• Medical Center Vincennes — Vincennes, Indiana, United States
• Cancer Care Specialists — Houma, Louisiana, United States

• Florida Cancer Specialists — Fort Myers, Florida, United States
• Florida Hospital Cancer Institute — Orlando, Florida, United States
• Center for Cancer and Blood Disorders — Bethesda, Maryland, United States
• National Capital Clinical Research Consortium — Bethesda, Maryland, United States

• Azienda Ospedaliera San Gerardo di Monza U.O. Ematologia — Monza, MB, Italy
• IRCCS Istituto clinico Humanitas di Rozzano Dipartimento di Ematologia — Rozzano, Milano, Italy
• Azienda Ospedaliera Ospedale Civile di Legnano U.O. Medicina Interna — Legnano, MI, Italy
• A.O. Papa Giovanni XXIII U.S.C. Ematologia — Bergamo, Italy

• Hackensack University Medical Center Cancer Center — Hackensack, New Jersey, United States
• Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill — Chapel Hill, North Carolina, United States

• Yale Cancer Center — New Haven, Connecticut, United States

• CCOP - Scottsdale Oncology Program — Scottsdale, Arizona, United States
• CCOP - Illinois Oncology Research Association — Peoria, Illinois, United States
• CCOP - Carle Cancer Center — Urbana, Illinois, United States
• CCOP - Cedar Rapids Oncology Project — Cedar Rapids, Iowa, United States

• Comprehensive Cancer Center at University of Alabama at Birmingham — Birmingham, Alabama, United States
• Comprehensive Cancer Institute — Huntsville, Alabama, United States
• MBCCOP - Gulf Coast — Mobile, Alabama, United States
• Montgomery Cancer Center — Montgomery, Alabama, United States

Not specified

• CCOP - Scottsdale Oncology Program — Scottsdale, Arizona, United States
• Mayo Clinic — Jacksonville, Florida, United States
• CCOP - Illinois Oncology Research Association — Peoria, Illinois, United States
• CCOP - Cedar Rapids Oncology Project — Cedar Rapids, Iowa, United States

• CCOP - Scottsdale Oncology Program — Scottsdale, Arizona, United States
• CCOP - Illinois Oncology Research Association — Peoria, Illinois, United States
• CCOP - Carle Cancer Center — Urbana, Illinois, United States
• CCOP - Cedar Rapids Oncology Project — Cedar Rapids, Iowa, United States