Convento, Marcia Bastos
Pessoa, Edson Andrade
Cruz, Edgar
da Glória, Maria Aparecida
Schor, Nestor
Borges, Fernanda Teixeira
Article History
Received: 6 October 2016
Accepted: 6 March 2017
First Online: 7 April 2017
Competing interests
: The authors declare no competing financial interests.