1 Respiratory Medicine, Hôpitaux Universitaires Paris Centre, Hôpital Cochin, AP-HP and Université de Paris (UMR1016), Paris, France nicolas.roche@aphp.fr.
2 Respiratory Effectiveness Group, Board of Directors, Ely, UK.
3 University of Texas Health and South Texas Veterans Health Care System, San Antonio, TX, USA.
4 Woolcock Institute of Medical Research, The University of Sydney, Sydney Local Health District, Sydney, Australia.
5 Dept of Family and Community Medicine, University of Toronto, Toronto, ON, Canada.
6 Pneumology Dept, University Hospital Vall d'Hebron, Ciber de Enfermedades Respiratorias (CIBERES), Barcelona, Spain.
7 Allergy and Respiratory Research Group, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Medical School, Edinburgh, UK.
8 Hospital Universitario de la Princesa, Universidad Autónoma de Madrid and Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
9 National Heart and Lung Institute, Imperial College London and Royal Brompton Hospital, Airways Disease Section, London, UK.
10 Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK.
11 Allergy Dept, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece.
12 Respiratory Disease and Allergy Clinic, IRCCS Humanitas Clinical and Research Center, Humanitas University, Milan, Italy.