1. Department of Research, ICS Terres de l’Ebre, University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), Barcelona, Spain
2. EAP-Camarles-Aldea-Ampolla, Catalonian Health Institute, SAP Terres de l’Ebre, Health Department, Generalitat de Catalunya, CAP Ampolla, 43895 Tortosa, Spain
3. EAP Tortosa 1-Est, Catalonian Health Institute, SAP Terres de l’Ebre, Health Department, Generalitat de Catalunya, CAP Temple, 43500 Tortosa, Spain
4. EAP Tortosa-2-Oest, Catalonian Health Institute, SAP Terres de l’Ebre, Health Department, Generalitat de Catalunya, CAP Xerta, Barcelona, 43592 Catalonia, Spain
5. UUDD Tortosa-Terres de l’Ebre, CAP Temple, EAP Tortosa Est, Institut Català de la Salut, 43500 Tortosa, Spain
6. EAP-Camarles-Aldea-Ampolla, Catalonian Health Institute, SAP Terres de l’Ebre, Health Department, Generalitat de Catalunya, CAP Camarles, 43894 Tortosa, Spain
7. EAP-Alcanar-St Carles de la Rápita, Catalonian Health Institute, SAP Terres de l’Ebre, Health Department, Generalitat de Catalunya, CAP St Carles de la Rápita, 43894 Tortosa, Spain