Recurrent Head and Neck Cancer

• Brigham and Women's Hospital — Boston, Massachusetts, United States
• Dana Farber Cancer Institute — Boston, Massachusetts, United States

• California Research Institute — Los Angeles, California, United States
• UCLA Cancer Care — Los Angeles, California, United States
• Stanford Cancer Institute — Palo Alto, California, United States
• Yale University — New Haven, Connecticut, United States

• Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University — Philadelphia, Pennsylvania, United States

• Hôpitaux Universitaires de Strasbourg — Strasbourg, France

• Ospedale Oncologico "A. Businco" ARNAS BROTSU — Cagliari, CAGLIARI, Italy
• Azienda Ospedaliero-Universitaria Policlinico "G. Rodolico-S. Marco — Catania, CATANIA, Italy
• Azienda Ospedaliero-Universitaria Careggi — Florence, FIRENZE, Italy
• Fondazione IRCCS Istituto Nazionale dei Tumori (INT) di Milano — Milan, Milano, Italy

• UC Health — Cincinnati, Ohio, United States

• Marin Cancer Center — Greenbrae, California, United States
• University of California San Francisco — San Francisco, California, United States
• Mayo Clinic — Jacksonville, Florida, United States
• Cleveland Clinic Florida — Weston, Florida, United States

Not specified

• Stanford University — Stanford, California, United States
• Winship Cancer Institute - Emory University School of Medicine — Atlanta, Georgia, United States
• Thomas Jefferson University — Philadelphia, Pennsylvania, United States

• Univeristy of Maryland - Greenebaum Comprehensive Cancer Center — Baltimore, Maryland, United States
• Johns Hopkins — Baltimore, Maryland, United States
• Fox Chase Cancer Center — Philadelphia, Pennsylvania, United States
• UPMC Hillman Cancer Center — Pittsburgh, Pennsylvania, United States