Affiliation: | 1. Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal;2. EPIUnit, Institute of Public Health, University of Porto (ISPUP), Porto, Portugal;3. Institute of Social Sciences, University of Lisbon, Lisbon, Portugal;4. Institute of Preventive Medicine and Public Health, Faculty of Medicine of Lisbon, Lisbon, Portugal;5. Faculty of Medicine, University of Lisbon, Lisbon, Portugal |