1 Stomatology Department - A.C. Camargo Cancer Center, Sao Paulo, Brazil.
2 Clinical Research Division- Instituto Nacional de Câncer - INCA/MS, Rio de Janeiro, Brazil.
3 Dentistry and Stomatology Division, Ophthalmology, Otolaryngology and Head and Neck Surgery Department, Clinical Hospital of Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, SP, Brazil.
4 Department of Oral Medicine, Hospital de Clínicas de Porto Alegre (HCPA/UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
5 Stomatology Department - A.C. Camargo Cancer Center, Sao Paulo, Brazil; Stomatology Department - School of Dentistry, Sao Paulo University, Sao Paulo, Brazil. Electronic address: falves@accamargo.org.br.