Pires, Mathias M.
Cantor, Maurício
Guimarães, Paulo R.
de Aguiar, Marcus A. M.
dos Reis, Sérgio F.
Coltri, Patricia P.
Article History
Received: 25 March 2015
Accepted: 9 September 2015
First Online: 7 October 2015
Competing interests
: The authors declare no competing financial interests.