Head and Neck Neoplasms

• University of California San Francisco — San Francisco, California, United States
• Stanford Comprehensive Cancer Center — Stanford, California, United States
• Sarah Cannon Research Institute at HealthONE — Denver, Colorado, United States
• Florida Cancer Specialists and Research Institute — Sarasota, Florida, United States

• Start Midwest — Grand Rapids, Michigan, United States
• Washington University in St Louis — St Louis, Missouri, United States
• Mount Sinai Prime — New York, United States
• Montefiore Medical Park At Eastchester Einstein Campus — The Bronx, New York, United States

• Teton Cancer Institute — Idaho Falls, Idaho, United States
• Oncology and Hematology of South Texas — Laredo, Texas, United States

• Oslo University Hospital — Oslo, Norway

• HealthONE Clinic Services Oncology-Hematology — Denver, Colorado, United States
• Florida Cancer Specialists — Sarasota, Florida, United States
• Sarah Cannon Research Institute — Nashville, Tennessee, United States
• The University of Texas M. D. Anderson Cancer Center — Houston, Texas, United States

• Ahmed Maher teaching hospital — Cairo, Egypt

Not specified

• Karapitiya Teaching Hospital — Galle, Southern Province, Sri Lanka
• National Dental Hospital — Colombo, Western Province, Sri Lanka
• Apeksha Hospital — Colombo, Western Province, Sri Lanka
• Colombo South (Teaching) Hospital — Colombo, Western Province, Sri Lanka

• University of Miami — Miami, Florida, United States
• Orlando Health — Orlando, Florida, United States
• Greater Baltimore Medical Center — Baltimore, Maryland, United States
• Boston University Medical Center — Boston, Massachusetts, United States

• Northwestern Univeristy — Chicago, Illinois, United States
• MD Anderson Cancer Center — Houston, Texas, United States
• Taipei Veteran General Hospital — Taipei, Taiwan