Lung Diseases, Obstructive

• Woolcock Institute of Medical Research — Sydney, Australia
• Grenoble University Hospital — Grenoble, France
• University Children's Hospital of Nancy — Nancy, France
• Azienda Ospedaliero, Universitaria Meyer — Florence, FI, Italy

• Kern Research Inc — Bakersfield, California, United States
• Orso Health Inc — La Jolla, California, United States
• Imax Clinical Trials — La Palma, California, United States
• Antelope Valley Clinical Trials — Lancaster, California, United States

• The First People' Hospital Of YuLin — Yulin, Guangxi, China
• Da Qing Long Nan Hospital — Daqing, Heilongjiang, China
• The People's Hospital of Anyang City — Anyang, Henan, China
• Yichang Central People's Hospital — Yichang, Hubei, China

• University of California, San Francisco — San Francisco, California, United States

Not specified

• University of Miami — Miami, Florida, United States