1. Primary care center Cartagena Casco , Cartagena, Murcia , Spain
2. University hospital La Paz , Madrid , Spain
3. AstraZeneca , Spain
4. Health Economics and Outcomes Research, Atrys Health , Barcelona , Spain
5. Primary care center Salud Puerta Blanca , Malaga , Spain
6. Hospital de Bellvitge, Hospitalet de Llobregat , Barcelona , Spain
7. Hospital Universitario Lucus Augusti , Lugo , Spain
8. University hospital Infanta Leonor , Madrid , Spain