Neoplasms, Complex and Mixed

• University of Alabama Comprehensive Cancer Center — Birmingham, Alabama, United States
• CCOP - Greater Phoenix — Phoenix, Arizona, United States
• Jonsson Comprehensive Cancer Center, UCLA — Los Angeles, California, United States
• Community Hospital of Los Gatos — Los Gatos, California, United States

• COG Phase I Consortium — Arcadia, California, United States

• Children's Oncology Group — Arcadia, California, United States

• Childrens Memorial Hospital — Chicago, Illinois, United States
• C S Mott Children's Hospital — Ann Arbor, Michigan, United States
• University of Minnesota Medical Center-Fairview — Minneapolis, Minnesota, United States
• Oregon Health and Science University — Portland, Oregon, United States

• Midwestern Regional Medical Center — Zion, Illinois, United States

• Korea Research Institute of Bioscience and Biotechnology — Dajeon, South Korea
• Asan Medical Center - University of Ulsan College of Medicine — Seoul, South Korea

• Memorial Sloan-Kettering Cancer Center — New York, United States

• Universitair Ziekenhuis Antwerpen — Edegem, Belgium
• U.Z. Gasthuisberg — Leuven, Belgium
• Aarhus Kommunehospital — Aarhus, Denmark
• Rigshospitalet — Copenhagen, Denmark

Not specified

• A.Z. St. Jan — Bruges, Belgium
• Institut Jules Bordet — Brussels, Belgium
• Hopital Universitaire Erasme — Brussels, Belgium
• U.Z. Gasthuisberg — Leuven, Belgium