1. Health Sciences Research Unit: UICISA: E-EsenfC/ESSIPV, Health School, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
2. Faculty of Psychology and Educational Sciences, University of Porto, 4200-135 Porto, Portugal
3. Health Sciences Research Unit: UICISA: E-EsenfC/ESSIPV, Health School of Viseu, Institute Polytechnic de Viseu, 3504-510 Viseu, Portugal