1. Department of Health, State University of Feira de Santana, Bahia, Brazil
2. Institute of Biological and Health Sciences, Federal University of Alagoas, Alagoas, Brazil
3. Departamento de Saúde, Universidade Estadual de Feira de Santana, 44.036-900. Feira de Santana, Bahia, Brazil , Tel.: +55 75 3161-8160