Affiliation: | 1. Department of Medicine, Medical School of Ribeir?o Preto, University of S?o Paulo, Ribeir?o Preto, Brazil;2. Regional University Center of Espírito Santo do Pinhal, Espírito Santo do Pinhal, Brazil;3. Faculty of Medical Sciences, Department of Preventive and Social Medicine, State University of Campinas, Campinas, Brazil |