Signs and Symptoms, Respiratory

• Phoenix Medical Group ( Site 0022) — Peoria, Arizona, United States
• Pulmonary Associates, PA ( Site 0063) — Phoenix, Arizona, United States
• Clinical Research Consortium ( Site 0088) — Tempe, Arizona, United States
• Allergy & Asthma Associates of SCV Research Center ( Site 0064) — San Jose, California, United States

• King's College Hospital NHS Foundation Trust — London, United Kingdom

• Stanford University Department of Otolaryngology- Head and Neck Surgery — Stanford, California, United States

• Département R3S, hôpital de la pitié-salpêtrière — Paris, France

• Dr. Suat Seren Chest Diseases and Surgery Training and Research Hospital — Izmir, Turkey (Türkiye)

• School of Public Health at Fudan University — Shanghai, China

Not specified

• Washington University — St Louis, Missouri, United States

• Mathias Aebi — Dübendorf, Canton of Zurich, Switzerland

Not specified