Affiliation: | 1. Radiation Technology Center (CTR), Nuclear and Energetic Research Institute-IPEN/CNEN, Av. Lineu Prestes 2242, Cidade Universitária, S?o Paulo, Brazil 2. Medical School, Micro and Plastic Surgery Department, S?o Paulo University, Av. Dr. Arnaldo 455, Cerqueira César, 01246-903, S?o Paulo, SP, Brazil 3. Mathematic and Statistic Institute, S?o Paulo University, Cidade Universitária Rua do Mat?o 1010, Cidade Universitária, 05508-000, S?o Paulo, SP, Brazil 4. Dental School Pathology Department, S?o Paulo University, Av. Lineu Prestes 2227, Cidade Universitária, 05508-000, S?o Paulo, SP, Brazil
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