Refractory Chronic Cough

• University of Colorado Anschutz Medical Campus — Aurora, Colorado, United States
• Emory University — Atlanta, Georgia, United States
• University of Montana — Missoula, Montana, United States

• BLC Clinical Research — Burlington, Canada
• Diex Recherche - Quebec — Québec, Canada
• Clinique Specialisee En Allergie De La Capitale — Québec, Canada
• Centre D'Investigation Clinique Mauricie Inc (CIC Mauricie) — Trois-Rivières, Canada

• GSK Investigational Site — Leshan, Sichuan, China
• GSK Investigational Site — Beijing, China
• GSK Investigational Site — Changsha, China
• GSK Investigational Site — Chengdu, China

• Mayo Clinic in Rochester — Rochester, Minnesota, United States

• Hyfe Inc. — Wilmington, Delaware, United States

• University of Montana — Missoula, Montana, United States

• Respiratory Clinical Trials Centre, University of Calgary — Calgary, Alberta, Canada
• Respiratory Research Lab, McMaster University — Hamilton, Ontario, Canada
• St Joseph's Health Care London — London, Ontario, Canada
• Institut universitaire de cardiologie et de pneumologie de Quebec - University Laval — Québec, Quebec, Canada

Not specified

• GSK Investigational Site — Foley, Alabama, United States
• GSK Investigational Site — Litchfield Park, Arizona, United States
• GSK Investigational Site — Phoenix, Arizona, United States
• GSK Investigational Site — Los Angeles, California, United States

• GSK Investigational Site — Jasper, Alabama, United States
• GSK Investigational Site — Litchfield Park, Arizona, United States
• GSK Investigational Site — Scottsdale, Arizona, United States
• GSK Investigational Site — Little Rock, Arkansas, United States