1. Radiology Department, Hospital of Laredo, Avda. Derechos Humanos s/n, Laredo, Cantabria, Spain
2. Internal Medicine Department, Hospital of Laredo, Avda. Derechos Humanos s/n, Laredo, Cantabria, Spain
3. Cardiovascular Surgery Department, University Hospital Marqués de Valdecilla, Avda. Valdecilla 25, Santander, Cantabria, Spain
4. Emergency Department, Hospital of Laredo, Avda. Derechos Humanos s/n, Laredo, Cantabria, Spain