Ferreira, João
Franco, Ana
Teodoro, Tiago
Coelho, Miguel
Albuquerque, Luísa
Article History
Received: 21 November 2017
Revised: 14 January 2018
Accepted: 12 February 2018
First Online: 12 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
Free to read: This content has been made available to all.