Head and Neck Neoplasms

• University Hospitals Cleveland Medical Center, Case Comprehensive Cancer Center — Cleveland, Ohio, United States

• Chonburi Cancer Hospital — Chon Buri, Changwat Chon Buri, Thailand

• University of Alabama at Birmingham — Birmingham, Alabama, United States

• University of Florida Shands Cancer Center — Gainesville, Florida, United States
• University of Miami Sylvester Comprehensive Cancer Center - Miami — Miami, Florida, United States
• Cancer Institute at St. John's Hospital — Springfield, Illinois, United States
• Josephine Ford Cancer Center at Henry Ford Hospital — Detroit, Michigan, United States

• Department of Anesthesiology and Pain Medicine, Yonsei University Health System — Seoul, South Korea

• Johns Hopkins Medicine — Baltimore, Maryland, United States

Not specified

• Gilbert, Arizona, United States
• Lakeland, Florida, United States
• Columbus, Georgia, United States
• Louisville, Kentucky, United States

• Nottingham University Hospitals NHS Trust — Nottingham, Nottinghamshire, United Kingdom

• Hospital Santa Rita - Santa Casa de Porto Alegre — Porto Alegre, Rio Grande do Sul, Brazil