Morais, M
PatrĂcio, P
Mateus-Pinheiro, A
Alves, N D
Machado-Santos, A R
Correia, J S
Pereira, J
Pinto, L
Sousa, N
Bessa, J M
Article History
Received: 3 October 2016
Revised: 24 April 2017
Accepted: 28 April 2017
First Online: 6 June 2017
Competing interests
: The authors declare no conflict of interest.