Rodrigues, V M
Rayner, M
Fernandes, A C
de Oliveira, R C
Proença, R P C
Fiates, G M R
Article History
Received: 14 February 2016
Revised: 12 August 2016
Accepted: 30 August 2016
First Online: 28 September 2016
Competing interests
: The authors declare no conflict of interest.