Signs and Symptoms, Respiratory

• David Geffen School of Medicine at UCLA — Los Angeles, California, United States
• University of California, San Francisco — San Francisco, California, United States
• National Jewish Health — Denver, Colorado, United States
• Georgetown University School of Medicine — Washington D.C., District of Columbia, United States

• Children's Hospital at Montefiore — The Bronx, New York, United States

• Children's Hospital of Chongqing Medical University — Chongqing, Chongqing Municipality, China

• Brigham and Women's Hospital Jen Center for Primary Care — Boston, Massachusetts, United States

• Maastricht Radiation Oncology (MAASTRO clinic) — Maastricht, Netherlands

• University of Florida — Gainesville, Florida, United States
• Brooks Rehabilitation Clinical Research Center — Jacksonville, Florida, United States

• National University Hospital — Singapore
• KK Women's and Children's Hospital — Singapore
• Singapore General Hospital — Singapore

• Universidade Federal do Rio Grande do Norte (UFRN) — Natal, Rio Grande do Norte, Brazil

Not specified

• University of Missouri — Columbia, Missouri, United States