Pulmonary Disease, Chronic Obstructive

• Quintiles Drug Research Unit at Guy's Hospital — London, United Kingdom
• Medicines Evaluation Unit (MEU) — Manchester, United Kingdom

• Novartis Investigative Site — Birmingham, Alabama, United States
• Novartis Investigative Site — Fairhope, Alabama, United States
• Novartis Investigative Site — Glendale, Arizona, United States
• Novartis Investigative Site — Los Angeles, California, United States

Not specified

• University Hospital of South Manchester — Manchester, Greater Manchester, United Kingdom

• Hospital Clinic — Barcelona, Spain

Not specified

• Research Site — Belgrade, Serbia
• Research Site — Kamenitz, Serbia
• Research Site — Kragujevac, Serbia
• Research Site — Niš, Serbia

Not specified

• VABoston Healthcare System — Boston, Massachusetts, United States

• Wilhelmina Ziekenhuis — Assen, Netherlands
• Delfzicht ziekenhuis — Delfzijl, Netherlands
• University Medical Centre Groningen — Groningen, Netherlands
• Diaconessenhuis — Meppel, Netherlands