Pires, Washington
Wanner, Samuel Penna
Soares, Danusa Dias
Coimbra, Cândido Celso
Article History
First Online: 16 July 2018
Compliance with Ethical Standards
:
: No sources of funding were used to assist in the preparation of this letter.
: Washington Pires, Samuel Wanner, Danusa Soares, and Cândido Coimbra have no conflicts of interest relevant to the content of this letter.