Affiliation: | 1. Department of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Natal, Brazil;2. Radiology Center, Onofre Lopes University Hospital of Federal University of Rio Grande do Norte, Natal, RN, Brazil;3. Department of Pediatrics, Federal University of Rio Grande do Norte, Natal, RN, Brazil;4. Department of Clinical and Toxicological Analyses, University of S?o Paulo, S?o Paulo, SP, Brazil |