Costa, Roberto G.
Ribeiro, Neila L.
Nobre, Priscila T.
Carvalho, Francisco F. R.
Medeiros, Ariosvaldo N.
Cruz, George R. B.
Freire, Luís F. S.
Article History
Received: 10 May 2017
Accepted: 14 September 2017
First Online: 29 September 2017
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.