1. Department of Onco-Hematological Pediatric, Perez Scremini Foundation, Montevideo, Uruguay.
2. Clinician of Special Laboratory of Laser in Dentistry (LELO), School of Dentistry, University of São Paulo (USP), São Paulo, Brazil.
3. Department of Oral Medicine, Oral Diagnosis and Stomatology, A.C. Camargo Cancer Center, São Paulo, Brazil.