Oral Oncol 2020 08 24;107:104734. Epub 2020 Apr 24.
Brazilian Group of Head and Neck Cancer/Latin American Cooperative Group - Head and Neck, Brazil; Head and Neck Surgery Department, University of São Paulo Medical School, Sao Paulo, Brazil; Head and Neck Surgery and Otorhinolaryngology Department, A C Camargo Cancer Center, Sao Paulo, Brazil. Electronic address: