Onofre, Isabel
Mendonça, Nuno
Lopes, Sara
Nobre, Rui
de Melo, Joana Barbosa
Carreira, Isabel Marques
Januário, Cristina
Gonçalves, António Freire
de Almeida, Luis Pereira
Article History
Received: 29 December 2015
Accepted: 24 May 2016
First Online: 22 June 2016
Competing interests
: The authors declare no competing financial interests.