1. Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
2. CINTESIS – Centre for Health Technology and Services Research, Porto, Portugal
3. Public Health Unit, ACES Grande Porto VIII - Espinho/Gaia, Vila Nova de Gaia, Portugal
4. Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
5. Subgroup of Terrorism and Security of the Crime and Justice Group of Campbell Collaboration, University of Queensland, Australia