1. Research and Biostatistics Department; IDIAP Jordi Gol; Barcelona; Spain
2. Primary Care Service Baix Llobregat Centre; Catalan Health Institute; Cornellà de Llobregat; Spain
3. Unit Methodology, Assessment and Quality; Catalan Health Institute; Barcelona; Spain
4. Director City project Caldes de Montbui- Palau Solità i Plegamans; Catalan Health Institute; Cornellà; Spain
5. Primary Healthcare Centre Sant Just; Catalan Health Institute; Escola Universitària d'Infermeria (Universitat de Barcelona); Barcelona; Spain
6. Pharmacy Department DAP Costa de Ponent; Catalan Health Institute; Cornellà; Spain
7. SAP Baix Llobregat Centre; Catalan Health Institute; Cornellà de Llobregat; Spain
8. Research Support Unit; Primary Health Department Costa de Ponent; Catalan Health Institute; IDIAP Jordi Gol; CIBER Epidemiology and Public Health (CIBERESP); Cornellà de Llobregat; Spain
9. Unit Methodology, Assessment and Quality; SAP Baix Llobregat Centre; Catalan Health Institute; Cornellà de Llobregat; Spain
10. Research Support Unit Metropolitana Nord; IDIAP Jordi Gol; Barcelona; Spain
11. Pneumology Department; Hospital Universitari Vall d'Hebron; Ciber de Enfermedades Respiratorias (CIBERES); Barcelona; Spain