1. Department of Clinical and Toxicological Analysis; School of Pharmaceutical Sciences; Federal University of Rio Grande do Norte; Natal RN Brazil
2. Care Programme for Children with Cleft Lip and Palate; Pediatrics Hospital Professor Heriberto Bezerra; Federal University of Rio Grande do Norte; Natal RN Brazil
3. Department of Clinical and Toxicological Analyses; School of Pharmaceutical Sciences; University of Sao Paulo; São Paulo SP Brazil