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• University of Alabama at Birmingham — Birmingham, Alabama, United States
• Northwestern University Feinberg School of Medicine — Chicago, Illinois, United States
• University of Maryland School of Medicine — Baltimore, Maryland, United States

• Department of Internal Medicine, Lung Diseases and Allergy Medical University of Warsaw — Warsaw, Masovian Voivodeship, Poland

Not specified

• University of Malawi College of Medicine — Blantyre, Southern Region, Malawi

• McMaster Cardio-Respiratory Research Lab — Hamilton, Ontario, Canada

• Ivano-Frankivsk National Medical University — Ivano-Frankivsk, Ukraine

• Catharina Ziekenhuis — Eindhoven, North Brabant, Netherlands
• Isala — Zwolle, Netherlands
• Queen's University — Belfast, Antrim, United Kingdom
• Birmingham Heartlands Hospital — Birmingham, West Midlands, United Kingdom

• National Jewish Medical and Research Center — Denver, Colorado, United States
• St. Vincent Health — Indianapolis, Indiana, United States
• Washington University School of Medicine — St Louis, Missouri, United States
• Mount Sinai School of Medicine — New York, United States

• Novartis Investigator Site — Ottawa, Ontario, Canada
• Novartis Investigator Site — Montreal, Quebec, Canada

• Li Chang — Suzhou, Jiangsu, China