1. Program of Graduate Studies on Applied Microbiology and Immunology, School of Medicine of Ribeirao Preto – University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, 14049-900, Ribeirão Preto SP, Brazil
2. Department of Internal Medicine, School of Medicine of Ribeirao Preto – University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, 14049-900, Ribeirao Preto SP, Brazil
3. Department of Clinical Analysis and Toxicology, Federal University of Rio Grande do Norte, Street General Gustavo Cordeiro de Farias, 384, Petropolis, 59012-570 Natal, RN, Brazil