[1
]insaf Respiratory Research Institute, Wiesbaden, Germany
[2
]Department of Respiratory Diseases and Adult Cystic Fibrosis Centre, Hôpital Cochin,
AP-HP and Paris Descartes University, Paris, France
[3
]Department of Research and Education, Centre of Expertise for Chronic Organ Failure,
Horn, the Netherlands
[4
]Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de
Sevilla, Hospital Universitario Virgen del Rocío, Sevilla, Spain
[5
]Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Instituto
de Salud Carlos III, Madrid, Spain
[6
]2nd Respiratory Medicine Department, National and Kapodistrian University of Athens
Medical School, Attiko University Hospital, Athens, Greece
[7
]University College London Respiratory, University College London, London, United Kingdom
[8
]University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia
[9
]Department of Pulmonary Medicine, Hvidovre Hospital, Copenhagen, Denmark
[10
]Dipartimento di Scienze della Salute, Università degli Studi di Milano, Ospedale San
Paolo, Milan, Italy
[11
]Clinic of Respiratory Medicine and Pulmonary Cell Research, University Hospital Basel,
Basel, Switzerland
[12
]Ludwig-Boltzmann-Institute for Chronic Obstructive Pulmonary Disease and Respiratory
Epidemiology, Otto-Wagner-Spital, Vienna, Austria
[13
]University Hospital, Limerick, Ireland
[14
]Graduate Entry Medical School, University of Limerick, Limerick, Ireland
[15
]Department of Public Health and Caring Science, Family Medicine and Preventive Medicine,
Uppsala University, Uppsala, Sweden
[16
]Novartis, Basel, Switzerland; and
[17
]Airways Disease Section, National Heart and Lung Institute, Imperial College London,
London, United Kingdom