1. Department of Internal Medicine Hospital General Universitario Gregorio Marañón Madrid Spain
2. Department of Internal Medicine Hospital Universitario de Fuenlabrada Madrid Spain
3. Department of Internal Medicine Hospital Clínico San Carlos Madrid Spain
4. Department of Hematology Hospital Universitario Fundación Jiménez Díaz Madrid Spain
5. Department of Internal Medicine Hospital Universitari Germans Trias i Pujol Badalona Spain
6. Department of Internal Medicine Hospital Cantoblanco Madrid Spain
7. Department of Intensive Care Hospital Universitario La Paz Madrid Spain
8. Department of Internal Medicine Hospital Universitario La Paz Madrid Spain
9. Cardiovascular Division Brigham and Women’s Hospital Harvard Medical School Boston Massachusetts USA
10. Yale/YNHH Center for Outcomes Research & Evaluation New Haven Connecticut USA
11. Cardiovascular Research Foundation New York New York USA
12. Respiratory Department Hospital Ramón y Cajal (IRYCIS) Madrid Spain
13. Universidad de Alcalá (IRYCIS) Madrid Spain
14. CIBER de Enfermedades Respiratorias (CIBERES) Madrid Spain
15. Department of Internal Medicine Hospital Germans Trias i Pujol Badalona Spain
16. Universidad Católica de MurciaUniversidad Autònoma de BarcelonaCIBER de Enfermedades Respiratorias (CIBERES) Madrid Spain