Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/BD/84817/2012, POCI-01-0145-FEDER-007653)
Article History
First Online: 7 June 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee (University of Minho Ethics Committee) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Ethics committee approval was obtained (reference: CEUM 025/2014).
: Informed consent was obtained from all individual participants included in the study.