1. Iberoamerican Cochrane Centre Barcelona—Department of Clinical Epidemiology and Public Health Biomedical Research Institute Sant Pau (IIB Sant Pau) Barcelona Spain
2. Department of Paediatrics, Obstetrics, Gynaecology and Preventive Medicine Universidad Autónoma de Barcelona Barcelona Spain
3. Universitat Autònoma de Barcelona Barcelona Spain
4. Avedis Donabedian Research Institute (FAD) Spain
5. Red de investigación en servicios de salud en enfermedades crónicas (REDISSEC) Barcelona Spain
6. Cancer Prevention and Control Programme Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat Barcelona Spain
7. European Patients' Forum (EPF) Brussels Belgium
8. OptiMedis AG Hamburg Germany
9. Netherlands Institute for Health Services Research (Nivel) The Netherlands
10. CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid Spain