Hemangiopericytoma, Malignant

• Tom Baker Cancer Center - Calgary — Calgary, Alberta, Canada
• British Columbia Cancer Agency - Vancouver Island Cancer Centre — Vancouver, British Columbia, Canada
• Margaret and Charles Juravinski Cancer Centre — Hamilton, Ontario, Canada
• Cancer Care Ontario-London Regional Cancer Centre — London, Ontario, Canada

• University of Alabama at Birmingham — Birmingham, Alabama, United States
• Phoenix Childrens Hospital — Phoenix, Arizona, United States
• University of Arizona Health Sciences Center — Tucson, Arizona, United States
• University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States

• Royal Orthopedic Hospital NHS Trust — Birmingham, England, United Kingdom
• Christie Hospital — Manchester, England, United Kingdom
• Mount Vernon Cancer Centre at Mount Vernon Hospital — Northwood, England, United Kingdom
• Nottingham City Hospital — Nottingham, England, United Kingdom

• Hematology-Oncology Associates of Illinois — Chicago, Illinois, United States
• Robert H. Lurie Comprehensive Cancer Center at Northwestern University — Chicago, Illinois, United States
• University Cancer Center at University of Washington Medical Center — Seattle, Washington, United States

Not specified

• University of Miami Sylvester Comprehensive Cancer Center - Miami — Miami, Florida, United States

• University of Chicago Comprehensive Cancer Center — Chicago, Illinois, United States
• Decatur Memorial Hospital — Decatur, Illinois, United States
• NorthShore University HealthSystem-Evanston Hospital — Evanston, Illinois, United States
• Ingalls Memorial Hospital — Harvey, Illinois, United States

• Dana-Farber/Harvard Cancer Center at Dana Farber Cancer Institute — Boston, Massachusetts, United States
• Memorial Sloan-Kettering Cancer Center — New York, United States

• Karl-Franzens-University Graz — Graz, Austria
• Institut Jules Bordet — Brussels, Belgium
• Hopital Universitaire Erasme — Brussels, Belgium
• Cliniques Universitaires Saint-Luc — Brussels, Belgium

• Arizona Cancer Center at University of Arizona Health Sciences Center — Tucson, Arizona, United States
• Arkansas Cancer Research Center at University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States
• Alta Bates Comprehensive Cancer Center — Berkeley, California, United States
• Peninsula Medical Center — Burlingame, California, United States