Maia, Margarida R. G.
Fonseca, António J. M.
Oliveira, Hugo M.
Mendonça, Carla
Cabrita, Ana R. J.
Article History
Received: 16 May 2016
Accepted: 5 August 2016
First Online: 30 August 2016
Competing interests
: The authors declare no competing financial interests.