1. Biomedical Research Institute, School of Medicine, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
2. Clinics Hospital, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
3. Department of Clinical Analysis and Toxicology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
4. Hospital da Criança Santo Antônio, Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
5. Federal University of São Carlos, São Carlos, São Paulo, Brazil