Sarcoma, Ewing

• Massachusetts General Hospital — Boston, Massachusetts, United States
• Boston Children's Hospital — Boston, Massachusetts, United States
• Brigham and Women's Hospital — Boston, Massachusetts, United States
• Dana-Farber Cancer Institute — Boston, Massachusetts, United States

• Children's Hospital of Los Angeles — Los Angeles, California, United States
• National Cancer Institute — Bethesda, Maryland, United States
• Boston Children's Hospital / Dana Farber Cancer Institute — Boston, Massachusetts, United States
• University of Michigan — Ann Arbor, Michigan, United States

• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• Rady Children's Hospital — San Diego, California, United States
• Connecticut Children's Hospital — Hartford, Connecticut, United States
• Arnold Palmer Hospital for Children — Orlando, Florida, United States

Not specified

• Memorial Sloan Kettering Cancer Center (All Protocol Activities) — New York, United States

• Suez Canal University — Ismailia, Egypt

• Children's Hospital of Alabama — Birmingham, Alabama, United States
• University of Alabama at Birmingham Cancer Center — Birmingham, Alabama, United States
• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States

• Istituto Ortopedico Rizzoli — Bologna, Italy

• City of Hope — Duarte, California, United States

• Laboratorio traslazionale in oncoematologia — Florence, Italy