1. Primary Care, Catalan Healthcare System, 43500 Tortosa, Spain
2. Department of Medicine, Rovira I Virgili University, 43201 Reus, Spain
3. Department of Psychology, Luther College, Decorah, IA 52101, USA
4. Department of Nursing, Luther College, Decorah, IA 52101, USA
5. Internal Medicine Unit, Sant Pau i Santa Tecla Hospital, 43880 Tarragona, Spain
6. Faculty and Department of Nursing, Rovira I Virgili University, 43002 Tarragona, Spain
7. Research Division, United Hospital Allina Health, St. Paul, MN 55102, USA
8. Santa Maria Hospital, 25198 Lleida, Spain
9. Faculty of Nursing and Physiotherapy, Lleida University, 25198 Lleida, Spain
10. Mayo Clinic, Rochester, MN 55901, USA
11. Research Support Unit, Terres de l’Ebre, Jordi Gol Primary Healthcare University Institute, 43500 Tortosa, Spain
12. Family and Community Medicine Educational Unit, Tortosa-Terres de L’Ebre, Catalan Healthcare System, 43500 Tortosa, Spain
13. Evaluation Unit, Terres de l’Ebre Primary Care Division, Catalan Healthcare System, 43500 Tortosa, Spain