1 Swiss Tropical and Public Health Institute, Allschwil, Switzerland.
2 University of Basel, Basel, Switzerland.
3 Swiss School of Public Health, Zürich, Switzerland.
4 Department of International Health, Care and Public Health Research Institute (CAPHRI), FHML, Maastricht University, Maastricht, Netherlands.
5 Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy.
6 Department of Medicine and Surgery, LUM University, Casamassima, Italy.
7 Epidemiology Research Unit, Institute of Public Health, University of Porto, Porto, Portugal.
8 Department of Health Psychology and Research Methodology, Pavol Jozef Šafárik University in Košice, Košice, Slovakia.
9 Institute of Medical Sociology, University of Hamburg, Hamburg, Germany.
10 Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland.
11 School of Medicine, Federico II University, Naples, Italy.
12 Centro Internacional de Entrenamiento e Investigaciones Médicas Universidad del Valle, Cali, Colombia.
13 Medical Statistics Unit-University of Campania "Luigi Vanvitelli", Naples, Italy.
14 Institute of Communication and Public Policy, Faculty of Communication, Culture, and Society, Università della Svizzera Italiana, Lugano, Switzerland.
15 Unité de Formation et de Recherche Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire.