1. Division of Dermatology; Internal Medicine Department; School of Medicine of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
2. Division of Immunology; Internal Medicine Department; School of Medicine of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
3. Chemistry Department; School of Philosophy; Sciences and Letters of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil