Neoplasms, Bone Tissue

• 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

• Institut Bergonié — Bordeaux, France
• Centre Oscar Lambret — Lille, France
• Centre Léon Bérard — Lyon, France
• Institut Paoli Calmettes — Marseille, France

• Masonic Cancer Center — Minneapolis, Minnesota, 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

• Centre François Baclesse, Centre de lutte contre le cancer (CLCC) — Caen, France
• Hôpital Michallon, CHU de Grenoble-Alpes — Grenoble, France

• Suez Canal University — Ismailia, Egypt

• University of Texas MD Anderson Cancer Center — Houston, Texas, United States

• Institut Bergonié — Bordeaux, France
• Centre Oscar Lambret — Lille, France
• Centre Léon Bérard — Lyon, France