1. Postgraduate Programme in Health Sciences, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
2. Baixada Santista Campus, Federal University of São Paulo/Baixada Santista Campus, Santos, São Paulo, Brazil
3. Dentistry, Federal University of Paraíba, João Pessoa, Brazil
4. Multi-campi School of Medical Sciences, Federal University of Rio Grande do Norte, Caicó, Rio Grande do Norte, Brazil