Affiliation: | 1. Department of Biochemistry and Immunology, Ribeir?o Preto Medical School, University of S?o Paulo, Ribeir?o Preto, Brazil;2. Department of Pathology, Ribeir?o Preto Medical School, University of S?o Paulo, Ribeir?o Preto, Brazil;3. Department of Internal Medicine, Ribeir?o Preto Medical School, University of S?o Paulo, Ribeir?o Preto, Brazil |