1. Scientific Directorate, ClinicResearch, Tiana, Barcelona, Spain
2. Health Economics and Outcomes Research Department, Pfizer, SLU, Alcobendas, Spain
3. Medical Department, Pfizer GEP SLU, Alcobendas, Spain
4. Primary Care Pharmacy Directorate, Avilés Primary Care Center, Avilés, Spain
5. Department of Medical Documentation, Hospital Germans Trias i Pujol, Badalona, Spain
6. Department of Economics, Universitat de Barcelona, Barcelona, Spain