Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/BD/116974/2016)
Received: 6 February 2020
Accepted: 18 May 2020
First Online: 1 July 2020
Ethics approval and consent to participate
: The University of Minho Ethics Commission - Subcommittee of Ethics for Social and Human Sciences and the Portuguese Ministry of Education approved the study, and written consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.