1. Radiology Department Clínica Universidad de Navarra Pamplona Spain
2. Pulmonary Department Hospital Ntra Sra de Candelaria Tenerife Spain
3. Respiratory Research Unit Hospital Ntra Sra de Candelaria Tenerife Spain
4. Pulmonary Department Brigham and Women's Hospital, Harvard Medical School Boston Massachusetts USA
5. Pulmonary Department Clínica Universidad de Navarra Pamplona Spain
6. Pulmonary Department Hospital Universitario Doctor Negrín Las Palmas Spain
7. Pulmonary Department Hospital Universitario Miguel Servet, Instituto Aragonés Ciencias Salud & CIBERES Zaragoza Spain
8. Pulmonary Department Baystate Medical Center Springfield Massachusetts USA
9. Respiratory Investigation Unit Queen's University Kingston Ontario Canada
10. Asthma and Airway Disease Research Center University of Arizona Tucson Arizona USA
11. Respirology and Sleep Medicine Division Queen's University Kingston Ontario Canada