Ewing's Sarcoma

• Memorial Sloan Kettering at Basking Ridge (Consent and Follow Up) — Basking Ridge, New Jersey, United States
• Memorial Sloan Kettering Monmouth (Consent and Followup) — Middletown, New Jersey, United States
• Memorial Sloan Kettering Westchester (Consent and Followup) — Harrison, New York, United States
• Memorial Sloan Kettering Cancer Center — New York, United States

Not specified

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

• Memorial Sloan Kettering Cancer Center — New York, United States
• Mary Crowley Cancer Research Centers — Dallas, Texas, United States

• University Hospitals Cleveland Medical Center, Case Comprehensive Cancer Center — Cleveland, Ohio, United States

• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• Nicklaus Children's Hospital (Miami Children's Health System) — Miami, Florida, United States
• Memorial Sloan Kettering Cancer Center — New York, United States
• Cleveland Clinic Children's — Cleveland, Ohio, United States

• Centro di Riferimento Oncologico - Unit of Medical Oncology — Aviano, Pordenone, Italy
• I.R.C.C. - Unit of Medical Oncology — Candiolo, Torino, Italy
• IRCCS materno infantile Burlo Garofolo — Trieste, T, Italy
• Azienda Ospedaliero Universitaria Consorziale Policlinico - Bari — Bari, Italy

• Sarcoma Oncology Center — Santa Monica, California, United States
• St. Jude Children 's Research Hospital — Memphis, Tennessee, United States
• Seattle Cancer Care Alliance — Seattle, Washington, United States
• Centre Léon Bérard — Lyon, France

• National Institutes of Health Clinical Center, 9000 Rockville Pike — Bethesda, Maryland, United States

• Children's Healthcare of Atlanta — Atlanta, Georgia, United States