Asthma

• Respiratory Research Unit, Copenhagen University Hospital Hvidovre — Hvidovre, Denmark

• Environmental Physiology Laboratory — Vancouver, British Columbia, Canada

• Taipei Tzu Chi Hospital — New Taipei City, None Selected, Taiwan

• Gulab Devi Hospital — Lahore, Punjab Province, Pakistan

• Research Site — Alpendorada, Portugal
• Research Site — Vila Cova Da Lixa, Portugal
• Research Site — Aradas, Portugal
• Research Site — Arazede, Portugal

• Department of Thoracic Medicine, Chang Gung Memorial Hospital — Taoyuan, Taiwan

• External Unit of Asthma of Respiratory Medicine Department of the University of Thessaly in Greece — Larissa, Thessaly, Greece

Not specified

• UPMC Children's Hospital of Pittsburgh — Pittsburgh, Pennsylvania, United States
• Behavioral Sciences Research Institute, University of Puerto Rico — San Juan, PR, Puerto Rico

• Tripler Army Medical Center — Tripler AMC, Hawaii, United States