1. Federal University of Pernambuco, 28116, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil, 50670-901;
2. Federal University of Ceara, 28121, Department of Morphology, Fortaleza, Ceara, Brazil;
3. Federal University of the Parnaíba Delta, Parnaiba, Brazil;
4. Federal University of Ceara, 28121, Clinical Medicine, Cel Nunes de Melo 1315, Rodolfo Teofilo, Fortaleza, Ceara, Brazil, 60430-270;