Silva, Pedro E. S.
Trigueiros, Joao L.
Trindade, Ana C.
Simoes, Ricardo
Dias, Ricardo G.
Godinho, Maria Helena
de Abreu, Fernao Vistulo
Article History
Received: 27 September 2015
Accepted: 17 February 2016
First Online: 30 March 2016
Competing interests
: The authors declare no competing financial interests.