Perdigão, João
Clemente, Sofia
Ramos, Jorge
Masakidi, Pedro
Machado, Diana
Silva, Carla
Couto, Isabel
Viveiros, Miguel
Taveira, Nuno
Portugal, Isabel
Article History
Received: 12 October 2016
Accepted: 16 January 2017
First Online: 23 February 2017
Competing interests
: The authors declare no competing financial interests.