Alexandre, Fernando http://orcid.org/0000-0001-7933-7885
Bação, Pedro http://orcid.org/0000-0002-3340-1068
Portela, Miguel http://orcid.org/0000-0002-4721-2081
Article History
Received: 14 February 2019
Accepted: 28 October 2019
First Online: 28 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.