Lung Diseases, Obstructive

• Catharina Hospital — Eindhoven, Netherlands
• University Hospital Maastricht — Maastricht, Netherlands
• St Radboud Childrens Hospital — Nijmegen, Netherlands
• Máxima Medical Centre — Veldhoven, Netherlands

• London Chest Hospital — London, United Kingdom

• University Hospital Maastricht — Maastricht, Netherlands

• University Hospital Maastricht — Maastricht, Netherlands

• Edmonton General Hospital, Caritas Lung HEalth Centre — Edmonton, Alberta, Canada

• Dr. Josip Benčević General Hospital — Slavonski Brod, Croatia
• Clinic Hospital Center Zagreb — Zagreb, Croatia

• Acusphere, Inc. — Watertown, Massachusetts, United States

Not specified

• Pfizer Investigational Site — Córdoba, Córdoba Province, Argentina
• Pfizer Investigational Site — San Miguel de Tucumán, Pcia de Tucuman, Argentina
• Pfizer Investigational Site — San Miguel de Tucumán, Pcia de Tucuman, Argentina
• Pfizer Investigational Site — Rosario, Santa Fé, Argentina

• Berchem, Belgium
• Brussels, Belgium