Neoplasms, Unknown Primary

• The Christie NHS Foundation Trust — Manchester, Greater Manchester, United Kingdom
• The Clatterbridge Cancer Centre NHS Foundation Trust — Liverpool, Merseyside, United Kingdom
• Blackpool Teaching Hospitals NHS Foundation Trust — Blackpool, United Kingdom
• Northern Care Alliance NHS Foundation Trust — Manchester, United Kingdom

• Princess Margaret Cancer Centre — Toronto, Ontario, Canada

• MLL Munich Leukemia Laboratory — Munich, Germany

Not specified

• The First Affiliated Hospital, Zhejiang University School of Medicine — Hangzhou, Zhejiang, China

• Haukeland University Hospital — Bergen, Norway
• Akershus University Hospital — Oslo, Norway
• Oslo University Hospital — Oslo, Norway
• Stavanger University Hospital — Stavanger, Norway

• City of Hope Comprehensive Cancer Center — Duarte, California, United States
• University of California Davis Comprehensive Cancer Center — Sacramento, California, United States
• City of Hope South Pasadena — South Pasadena, California, United States
• Moffitt Cancer Center — Tampa, Florida, United States

• M D Anderson Cancer Center — Houston, Texas, United States

• Princess Margaret Hospital — Toronto, Ontario, Canada

• M D Anderson Cancer Center — Houston, Texas, United States