1. Department of Nursing and Physiotherapy Faculty of Nursing and Physiotherapy University of Lleida Lleida Spain
2. Healthcare Research Group (GRECS) Biomedical Research Institute (IRB) Lleida Spain
3. Society, Health, Education and Culture Research Group (GESEC) University of Lleida Lleida Spain
4. Department of Nursing Faculty of Medicine Universidad Autónoma de Madrid Madrid Spain
5. Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP) Madrid Spain
6. Department of Clinical Medicine and Public Health, Epidemiology and Global Health Unit University of Umea Umea Sweden
7. Department of Community Nursing, Preventive Medicine and Public Health and History of Science Public Health Research Group University of Alicante Alicante Spain
8. Department of Nursing I Faculty of Medicine and Nursing University of the Basque Country UPV/EHU Bilbao Spain