Histiocytosis, Non-Langerhans-Cell

• University of Alabama at Birmingham — Birmingham, Alabama, United States
• Children's Hospital of Orange County — Orange, California, United States
• University of California San Francisco — San Francisco, California, United States
• University of Colorado Denver — Aurora, Colorado, United States

• Children's Hospital Colorado — Aurora, Colorado, United States
• Alfred I. duPont Hospital for Children - Nemours Center for Cancer and Blood Disorders - Division of Pediatric Hematology Oncology — Wilmington, Delaware, United States
• Children's Healthcare of Atlanta — Atlanta, Georgia, United States
• Dana-Farber Cancer Institute (DFCI) — Boston, Massachusetts, United States

• Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité - Universitätsmedizin Berlin — Berlin, Germany

• University of Alabama at Birmingham — Birmingham, Alabama, United States
• Children's National Medical Center — Washington D.C., District of Columbia, United States
• Children's Healthcare of Atlanta — Atlanta, Georgia, United States
• Ann and Robert H. Lurie Children's Hospital of Chicago — Chicago, Illinois, United States

Not specified

• Children's Hospital Colorado — Denver, Colorado, United States
• New York Medical College — Valhalla, New York, United States
• University of Utah — Salt Lake City, Utah, United States

• Spectrum Health Helen Devos Children's Hospital — Grand Rapids, Michigan, United States
• University of North Carolina at Chapel Hill — Chapel Hill, North Carolina, United States
• Cincinnati Children's Hospital - Division of Immunobiology — Cincinnati, Ohio, United States
• Cincinnati Children's Hospital — Cincinnati, Ohio, United States

• Cincinnati Children'S Hospital — Cincinnati, Ohio, United States
• Hôpital Necker-Enfants Malades, Unité d'Immunologie-hématologie et Rhumatologie pédiatriques — Paris, France
• IRCCS Ospedale Pediatrico, Bambino Gesù — Rome, Italy
• Hospital Sant Joan de Deu — Barcelona, Spain

• Investigational Site Number 840001 — New York, United States
• Investigational Site Number 076001 — Porto Alegre, Brazil
• Investigational Site Number 250002 — Bron, France
• Investigational Site Number 276001 — Mainz, Germany

• Children's Hospital Colorado — Aurora, Colorado, United States
• Oregon Health and Science University — Portland, Oregon, United States
• Vanderbilt University/Ingram Cancer Center — Nashville, Tennessee, United States
• Seattle Children's Hospital — Seattle, Washington, United States