Bronchitis, Chronic

• Fondazione Maugeri IRCCS — Lumezzane, Brescia, Italy
• Villa Pineta Hospital — Pavullo nel Frignano, Modena, Italy
• Fondazione Maugeri IRCCS — Veruno, Novara, Italy
• Centro Riabilitazione Auxilium Vitae — Volterra, Pisa, Italy

Not specified

Not specified

• Sanofi-Aventis — Bridgewater, New Jersey, United States
• Sanofi-Aventis — Brussels, Belgium
• Sanofi-Aventis — Paris, France
• Sanofi-Aventis — Budapest, Hungary

• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Columbiana, Alabama, United States
• Pfizer Investigational Site — Tallassee, Alabama, United States

• Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht — Utrecht, Netherlands

• Pulmonary Associates — Glendale, Arizona, United States
• Greater Los Angeles Healthcare System — Los Angeles, California, United States
• Bay Pines VA Heatlhcare System — Bay Pines, Florida, United States
• Florida Pulmonary Research Institute, LLC — Winter Park, Florida, United States

• University of Alberta — Edmonton, Alberta, Canada
• University of British Columbia — Vancouver, British Columbia, Canada

Not specified

• Department of Family Medicine, University of Maastricht — Maastricht, Netherlands
• Department of Family Medicine, Radboud University Nijmegen Medical Centre — Nijmegen, Netherlands