Pulmonary Disease, Chronic Obstructive

• Chu Reims — Reims, France

Not specified

• General Hospital of Argolida - Nafplion Unit — Nafplion, Argos, Greece
• 2nd Department of Internal Medicine, University General Hospital of Alexandroupolis — Alexandroupoli, Greece
• Department of Therapeutics, Alexandra General Hospital — Athens, Greece
• 1st Department of Internal Medicine, General Hospital of Athens G. GENNIMATAS — Athens, Greece

• Midwest Chest Consultants — Saint Charles, Missouri, United States

• Clinical Research of Rock Hill — Rock Hill, South Carolina, United States

• asmaa Mostafa — Luxor, Egypt

• SGS Life Sciences - Clinical Pharmacology Unit Antwerpen — Antwerp, Belgium

• Foothills Medical Centre — Calgary, Alberta, Canada
• Rockyview General Hospital — Calgary, Alberta, Canada
• Royal Alexandra Hospital — Edmonton, Alberta, Canada
• University of Alberta Hospital — Edmonton, Alberta, Canada

• Faculty of Sports Science, Chulalongkorn University — Bangkok, Thailand

• Aarhus Universitets hospital Skejby — Aarhus, Denmark