Guedes, Ana Filipa
Carvalho, Filomena A.
Malho, Inês
Lousada, Nuno
Sargento, Luís
Santos, Nuno C.
Article History
Received: 5 October 2015
Accepted: 3 March 2016
First Online: 16 May 2016
Competing interests
: The authors declare no competing financial interests.