Campanella, Nathália C
Celestino, Ricardo
Pestana, Ana
Scapulatempo-Neto, Cristovam
de Oliveira, Antonio Talvane
Brito, Maria José
Gouveia, António
Lopes, José Manuel
Guimarães, Denise Peixoto
Soares, Paula
Reis, Rui M
Article History
Received: 25 April 2014
Revised: 11 August 2014
Accepted: 20 August 2014
First Online: 24 September 2014
Competing interests
: The authors declare no conflict of interest.