1. Research Laboratory on Epidemiology and Population Health, Polytechnic of Guarda (IPG), Guarda, Portugal
2. Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Covilhã, Portugal
3. University of Salamanca, Salamanca, Spain
4. Hospital de Santa Maria, Lisbon, Portugal
5. Area of Preventive Medicine and Public Health, Department of Biomedical and Diagnostic Sciences, University of Salamanca, Salamanca, Spain
6. Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
7. Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
8. Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiology and Public Health-CIBERESP), Madrid, Spain
9. Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal