1. Research Center, Methodist University Center IPA, Porto Alegre, Brazil
2. Department of Health Basic Science, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
3. Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
4. Laboratory of Immunogenetics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
5. Federal Institution of Education, Science and Technology of RS, Porto Alegre, Brazil