Vega-Naredo, I
Loureiro, R
Mesquita, K A
Barbosa, I A
Tavares, L C
Branco, A F
Erickson, J R
Holy, J
Perkins, E L
Carvalho, R A
Oliveira, P J
Article History
Received: 18 September 2013
Revised: 28 February 2014
Accepted: 7 April 2014
First Online: 16 May 2014
Competing interests
: The authors declare no conflict of interest.