Celli, Marcos G.
Perotto, Maria C.
Luciani, Cecilia E.
Pozzi, Elizabeth A.
Conci, Vilma C.
Article History
Accepted: 2 July 2018
First Online: 13 July 2018
Compliance with ethical standards
: The data acquisition for this work has not been in legal conflict with the authorities where the work was carried out.
: The authors have no conflicts of interest to declare.