[1
]Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
[2
]Oxford University Medical School, Oxford, United Kingdom
[3
]Respiratory Effectiveness Group, Cambridge, United Kingdom
[4
]Centre of Academic Primary Care, University of Aberdeen, Aberdeen, United Kingdom
[5
]Observational and Pragmatic Research Institute, Singapore
[6
]Division of Pulmonology, Department of Medicine, University of Cape Town, Cape Town,
South Africa
[7
]Section of Respiratory Medicine and Allergology, Department of Clinical Sciences,
and
[8
]Department of General Practice and Elderly Care Medicine, Groningen Research Institute
for Asthma and COPD, University Medical Center Groningen, University of Groningen,
Groningen, the Netherlands
[9
]Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive
Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
[10
]Department of Respiratory Medicine, Royal College of Surgeons, Dublin, Ireland
[11
]CIUSSS de l’Ouest-de-l’Île-de-Montréal, Montreal Chest Institute, Meakins-Christie
Laboratories, Oscillometry Unit and Centre for Innovative Medicine, McGill University
Health Centre and Centre Research Institute, Montreal, Quebec, Canada
[12
]Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen,
Groningen, the Netherlands
[13
]Respiratory Medicine, Croix-Rousse University Hospital, Lyon, France
[14
]Department of Respiratory Medicine, Mater Dei Hospital, Msida, Malta
[15
]Family Physician Airways Group of Canada, University of Toronto, Toronto, Ontario,
Canada
[16
]General Practitioners Research Institute, Groningen, the Netherlands
[17
]Pneumology Department, University Hospital Vall d'Hebron/Vall d’Hebron Research Institute
(VHIR), CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain
[18
]Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University,
Nagoya, Japan
[19
]Universidade Federal de Santa Catarina, Florianópolis, Brazil
[20
]Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul
St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul,
Republic of Korea
[21
]Hospital Universitario de la Princesa (IISP), Universidad Autónoma de Madrid, Madrid,
Spain
[22
]Department of Medicine, Pulmonary and Critical Medicine, German Center for Lung Research,
University of Marburg, Marburg, Germany
[23
]Primary Care Chronic Respiratory Diseases Research Unit, Instituto de Investigación
Sanitaria de las Islas Baleres, IdISBa, Palma, Spain
[24
]Optimum Patient Care, Cambridge, United Kingdom
[25
]Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada; and
[26
]Pneumologie et Soins Intensifs Respiratoires, Groupe Hospitalier Cochin, Assistance
Publique-Hôpitaux de Paris, Université Paris Descartes, Paris, France