Ferrari, E P
Minatto, G
Berria, J
Silva, S F dos S
Fidelix, Y L
Ribeiro, R R
Santos, K D
Petroski, E L
Article History
Received: 30 July 2014
Accepted: 22 August 2014
First Online: 3 December 2014
Competing interests
: The authors declare no conflict of interest.