Lung Diseases, Obstructive

• Pulmonary & Sleep Associates of Jasper, PC — Jasper, Alabama, United States
• Pulmonary Associates, PA — Phoenix, Arizona, United States
• Arizona Clinical Research Center, Inc. — Tucson, Arizona, United States
• Northern California Research Corp. — Fair Oaks, California, United States

• Encinatas, California, United States
• Huntington Beach, California, United States
• Mesa, California, United States
• Orange County, California, United States

• Long Beach, California, United States
• Denver, Colorado, United States
• Englewood, Colorado, United States
• Russells Mills, Massachusetts, United States

• Pinnacle Research Group — Anniston, Alabama, United States
• Princeton Pulmonary Group, PC — Birmingham, Alabama, United States
• Pulmonary & Sleep Associates of Jasper, PC — Jasper, Alabama, United States
• Pulmonary Associates of Mobile, P.C. — Mobile, Alabama, United States

• Encinitas, California, United States
• Long Beach, California, United States
• Brandon, Florida, United States
• Cleawater, Florida, United States

• Adolescent & Pediatric Associates, PC — Montgomery, Alabama, United States
• The Children's Clinic of Jonesboro, PA — Jonesboro, Arkansas, United States
• Integrated Research Group — Corona, California, United States
• Allergy & Asthma Specialists Medical Group — Huntington Beach, California, United States

• Children's Hospital of Wisconsin — Milwaukee, Wisconsin, United States

Not specified

• Southampton University General Hospital — Southampton, Hampshire, United Kingdom

• Pfizer Investigational Site — Manchester, Greater Manchester, United Kingdom
• Pfizer Investigational Site — London, United Kingdom