1. Health Services Research Group; IMIM-Institut Hospital del Mar d′Investigacions Mèdiques; Barcelona Spain
2. Pompeu Fabra University (UPF); Barcelona Spain
3. CIBER Epidemiología y Salud Pública (CIBERESP); Madrid Spain
4. University of Cadiz (UCA); Cadiz Spain
5. Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IDISPA); University of Balearic Islands (UIB); Palma de Mallorca Spain
6. Miguel Hernandez University (UMH); Elche Spain
7. Outpatient Mental Health Care Network; Osakidetza-Basque Health Service; Basque Country San Sebastián Spain
8. University of the Basque Country (UPV-EHU); San Sebastián Spain
9. Department of Mental Health; Corporació Sanitaria Parc Taulí; Sabadell Spain
10. Universitair Psychiatrisch Centrum; KU Leuven (UPC-KUL); Leuven Belgium
11. Department of Psychiatry; Harvard Medical School; Center for Depression, Anxiety and Stress Research; McLean Hospital; Boston MA USA
12. Department of Psychology; Harvard University; Boston MA USA
13. Department of Health Care Policy; Harvard Medical School; Boston MA USA