1. Federal University of Rio Grande do Norte Natal Brazil
2. Department of Speech, Language and Hearing Sciences Federal University of Rio Grande do Norte Natal Brazil
3. Basic and Oral Biology Department School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
4. Postgraduate Program in Communication Disorders Tuiuti University of Paraná Curitiba Brazil
5. Associated Postgraduate Program in Speech, Language and Hearing Sciences Department of Morphology Center of Biosciences Federal University of Rio Grande do Norte Natal Brazil