1. Division of Infection, Immunity, and Respiratory Medicine, University of Manchester, Manchester University National Health Service Hospital Trust, Manchester, United Kingdom
2. Respiratory Medicine Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
3. Institute for Lung Health, National Institute for Health Research Leicester Biomedical Research Centre, Department of Respiratory and Infection Sciences, University of Leicester, Leicester, United Kingdom
4. Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
5. Pulmonary and Critical Care Medicine, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
6. Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan
7. Pulmonary and Critical Care Medicine, Weill Cornell Medical College, New York, New York
8. COPD Patient-Powered Research Network, COPD Foundation, Washington, DC
9. COPD Biomarkers Qualification Consortium, COPD Foundation, Miami, Florida
10. Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany
11. Global Clinical Development, Chiesi Farmaceutici, Parma, Italy
12. Global Medical Affairs, Speciality and Primary Care, GlaxoSmithKline, Middlesex, United Kingdom
13. Biopharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom
14. University of Nebraska Medical Center, Omaha, Nebraska; and
15. Research and Development, AstraZeneca, Gaithersburg, Maryland