Figueiredo, Vandré Casagrande
de Salles, Belmiro Freitas
Trajano, Gabriel S.
Article History
First Online: 2 February 2018
Compliance with Ethical Standards
:
: No sources of funding were used to assist in the preparation of this letter.
: Vandré Casagrande Figueiredo, Belmiro Freitas de Salles and Gabriel Trajano declare they have no conflicts of interest relevant to the content of this letter.