Pulmonary Arterial Hypertension

• Ahmanson/UCLA Heart Disease Center — Los Angeles, California, United States
• Stanford Hospital and Clinic — Palo Alto, California, United States
• Emory University Hospital/the Emory Clinic — Atlanta, Georgia, United States
• Barnes-Jewish Hosp/Wash Univ School of Med — St Louis, Missouri, United States

• Hospital Vall d'Hebron — Barcelona, Spain

• UCSD Medical Center -La Jolla — La Jolla, California, United States
• UCSF Medical Center — San Francisco, California, United States
• Harbor UCLA Medical Center — Torrance, California, United States
• Emory University — Atlanta, Georgia, United States

• Northwell Health — New Hyde Park, New York, United States

• Multiple Locations, Canada

• Hospital University Center of Martinique — Fort-de-France, Martinique

• Multiple Locations, France

Not specified

• Many Locations, Poland

• GSK Investigational Site — Miami Beach, Florida, United States
• GSK Investigational Site — Chicago, Illinois, United States
• GSK Investigational Site — Baltimore, Maryland, United States
• GSK Investigational Site — Boston, Massachusetts, United States