1. Department of Community Medicine; Information and Health Decision Sciences; Faculty of Medicine; University of Porto; Porto Portugal
2. Center for Health Technology and Services Research (CINTESIS); Porto Portugal
3. Division of Microbiology; Department of Pathology; Faculty of Medicine; University of Porto; Porto Portugal
4. Department of Dermatovenereology; Centro Hospitalar S. João; Porto Portugal
5. Faculty of Medicine; University of Rome “Tor Vergata”; Porto Portugal