1. Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-900, Brazil
2. Department of Pathology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
3. Department of Health Sciences at Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto-SP 14049-900, Brazil