Pulmonary Disease, Chronic Obstructive

• Pearl Investigative Site — Fullerton, California, United States
• Pearl Investigative Site — Clearwater, Florida, United States
• Pearl Investigative Site — Panama City, Florida, United States
• Pearl Investigative Site — Tampa, Florida, United States

• GSK Investigational Site — Birmingham, Alabama, United States
• GSK Investigational Site — Birmingham, Alabama, United States
• GSK Investigational Site — Birmingham, Alabama, United States
• GSK Investigational Site — Hueytown, Alabama, United States

• GSK Investigational Site — Phoenix, Arizona, United States
• GSK Investigational Site — Lebanon, New Hampshire, United States
• GSK Investigational Site — Albany, New York, United States
• GSK Investigational Site — Columbus, Ohio, United States

• UMCG — Groningen, Netherlands

• GSK Investigational Site — Newport Beach, California, United States
• GSK Investigational Site — San Diego, California, United States
• GSK Investigational Site — Upland, California, United States
• GSK Investigational Site — Sunset, Louisiana, United States

• GSK Investigational Site — Jasper, Alabama, United States
• GSK Investigational Site — Glendale, Arizona, United States
• GSK Investigational Site — Fountain Valley, California, United States
• GSK Investigational Site — Fullerton, California, United States

• Kansas University Medical Center — Kansas City, Kansas, United States

• GSK Investigational Site — London, United Kingdom

Not specified

• University Hospital of Antwerp — Edegem, Antwerp, Belgium