Martins, Ana Teresa
Ros, Antónia
Valério, Letícia
Faísca, Luís
Article History
First Online: 15 August 2017
Compliance with Ethical Standards
:
: All the authors declare no conflict of interest
: All the procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.