Head and Neck Neoplasms

• Department of Medicine I, Division of Gastroenterology and Clinical Nutrition, Johann Wolfgang Goethe-University Hospital, — Frankfurt am Main, Germany

• Radboud University Nijmegen Medical Centre — Nijmegen, Gelderland, Netherlands

• Dana-Farber Cancer Institute — Boston, Massachusetts, United States
• Stony Brook University Hospital — Stony Brook, New York, United States
• Sarah Cannon Cancer Center — Nashville, Tennessee, United States
• The Vanderbilt Cancer Center — Nashville, Tennessee, United States

• Tata Memorial Hospital — Mumbai, Maharashtra, India

• UCLA Medical Center — Los Angeles, California, United States
• H Lee Moffitt Cancer Center & Research Institute — Tampa, Florida, United States
• Commonwealth ENT — Louisville, Kentucky, United States
• University of Connecticutt — Farmington, Massachusetts, United States

Not specified

• St George Hospital, Cancer Care Centre — Sydney, New South Wales, Australia

• The Dale & Frances Hughes Cancer Center — East Stroudsburg, Pennsylvania, United States

• Centre Régional de Lutte contre le Cancer de Nantes-Atlantique — Nantes, France

• Mt. Sinai Medical Center — Miami Beach, Florida, United States