1. Department of Clinical Analysis and Toxicology; Federal University of Rio Grande do Norte; Natal RN Brazil
2. Department of Integrated Medicine, Hospital Onofre Lopes; Federal University of Rio Grande do Norte; Natal RN Brazil
3. Hospital Casa de Saúde São Lucas; Natal RN Brazil
4. Department of Clinical Analysis and Toxicology, School of Pharmaceutical Sciences; University of Sao Paulo; Sao Paulo Brazil