1. Care and Health Research Group, GRUPAC, Nursing Deparment, University of La Rioja, 26006 Logroño, Spain
2. Biomedical Research Centre of La Rioja, CIBIR, 26006 Logroño, Spain
3. Department of Health Sciences, University of Genoa, 16126 Genova, Italy
4. Faculty of Education, Psychology and Social Work, University of Lleida, 25001 Lleida, Spain
5. Group for the Study of Society, Health, Education and Culture (GESEC), University of Lleida, 25001 Lleida, Spain
6. Research Institute in Social and Territorial Development (INDEST), University of Lleida, 25001 Lleida, Spain
7. Faculty of Nursing and Physiotherapy, University of Salamanca, 37008 Salamanca, Spain
8. Primary Care Research Unit of Salamanca (APISAL), Institute of Biomedical Research of Salamanca (IBSAL), 37008 Salamanca, Spain
9. Aragonese Health Service (SALUD), 50017 Zaragoza, Spain
10. Department of Translational Medicine, University of East Piedmonet, 13100 Vercelli, Italy
11. Faculty of Health Sciences, International University of Valencia, 46002 Valencia, Spain
12. Prevention and Early Intervention in Mental Health (PRINT), Institute of Biomedical Research of Salamanca (IBSAL), 37008 Salamanca, Spain
13. Faculty of Medicine, University of Salamanca, 37008 Salamanca, Spain
14. Department of Psychiatry, University of Cambridge, Cambridge CB2 1TN, UK