1. Respiratory Institute, Hospital Clinic, University of Barcelona, Barcelona, Spain
2. CIBER Enfermedades Respiratorias, Barcelona, Spain
3. Chair of the Board of Directors, Global Initiative for Chronic Obstructive Lung Disease (GOLD), Fontana, Wisconsin
4. Department of Medicine, Pulmonary and Critical Care Medicine, University of Marburg, Member of the German Center for Lung Research (DZL), Marburg, Germany
5. Chair of the Science Committee, Global Initiative for Chronic Obstructive Lung Disease (GOLD), Fontana, Wisconsin