Asthma

• Aarhus University Hospital — Aarhus, Denmark
• Bispebjerg Hospital — Copenhagen, Denmark
• Turku Allergy Centre — Turku, Finland
• Ruhr University of Bochum — Bochum, Germany

• Center for Emergency Medicine maribor — Maribor, Slovenia

• Pfizer Investigational Site — Berlin, Germany
• Pfizer Investigational Site — Großhansdorf, Germany
• Pfizer Investigational Site — Wiesbaden, Germany
• Pfizer Investigational Site — Gothenburg, Sweden

• Seattle Children's Hospital — Seattle, Washington, United States

• University of Saskatchewan — Saskatoon, Saskatchewan, Canada

Not specified

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

• University Hospital Antwerp — Edegem, Antwerp, Belgium

• Department of Pediatrics and Allergy, Medical University of Lodz, Poland — Lodz, Poland

• Novartis Investigative Site — Berlin, Germany
• Novartis Investigative site — Hamburg, Germany
• Novartis investigative site — Hanover, Germany
• Novartis investigative site — Mainz, Germany