Leukemia, Lymphocytic, Chronic, B-Cell

• UAB Comprehensive Cancer Center — Birmingham, Alabama, United States
• Children's Hospital of Orange County — Orange, California, United States
• UCSF Helen Diller Family Comprehensive Cancer Center — San Francisco, California, United States
• Children's Hospital Colorado Center for Cancer and Blood Disorders — Aurora, Colorado, United States

• Stanford University School of Medicine — Stanford, California, United States

• Indiana University Cancer Center — Indianapolis, Indiana, United States

• Indiana Universtiy Simon Cancer Center — Indianapolis, Indiana, United States

• Banner Good Samaritan Medical Center — Phoenix, Arizona, United States
• City of Hope Comprehensive Cancer Center — Duarte, California, United States

• Indiana University Cancer Center — Indianapolis, Indiana, United States

Not specified

• Chedoke-McMaster Hospitals — Hamilton, Ontario, Canada
• Juravinski Cancer Centre at Hamilton Health Sciences — Hamilton, Ontario, Canada
• Princess Margaret Hospital Phase 2 Consortium — Toronto, Ontario, Canada
• University Health Network-Princess Margaret Hospital — Toronto, Ontario, Canada

• University of Minnesota Children's Hospital - Fairview — Minneapolis, Minnesota, United States

• Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium — Seattle, Washington, United States