1 Department of Health Sciences, ZHAW Zürich University of Applied Sciences, Winterthur, Switzerland.
2 Medical Faculty, University of Basel, Basel, Switzerland.
3 School of Education, University of Galway, Galway, Ireland.
4 Faculty of Medicine and Surgery, University of Malta, Msida, Malta.
5 Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Duesseldorf, Germany.
6 National School of Public Health, Lisbon, Portugal.
7 Division of Infant, Youth, Reproductive and Sexual Health, Health Directorate General, Lisbon, Portugal.
8 Unidade de Saúde Pública Sintra, Sintra, Portugal.
9 Epitask Force-Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal.
10 WHO Collaborating Centre for Maternal and Child Health, Institute for Maternal and Child Health-IRCCS "Burlo Garofolo"-Trieste, Trieste, Italy.
11 Maternal Adolescent Reproductive and Child Healthcare Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom.
12 Department of Interdisciplinary Social Science, Faculty of Social and Behavioural Sciences, Utrecht University, Utrecht, Netherlands.
13 Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
14 École des Hautes Etudes en Santé Publique (EHESP), Rennes, France.
15 Centre d'Epidémiologie et de Recherche en santé des Populations (CERPOP), Inserm UMR1295, Toulouse, France.
16 Department of Health Sciences, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.
17 Department of Sociology, Interuniversity Center for Social Science Theory and Methodology (ICS), University of Groningen, Groningen, Netherlands.