Alves, N D
Correia, J S
PatrĂcio, P
Mateus-Pinheiro, A
Machado-Santos, A R
Loureiro-Campos, E
Morais, M
Bessa, J M
Sousa, N
Pinto, L
Article History
Received: 29 December 2016
Accepted: 9 January 2017
First Online: 14 March 2017
Competing interests
: The authors declare no conflict of interest.