Gouveia, Maria João
Brindley, Paul J.
Azevedo, Carlos
Gärtner, Fátima
da Costa, José M. C.
Vale, Nuno
Article History
Received: 28 December 2018
Accepted: 15 June 2019
First Online: 20 June 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.