Paranasal Sinus Diseases

• GSK Investigational Site — Rousse, Bulgaria
• GSK Investigational Site — Sofia, Bulgaria
• GSK Investigational Site — Sofia, Bulgaria
• GSK Investigational Site — Sofia, Bulgaria

• Mount Sinai School of Medicine — New York, United States

• Department of Otolaryngology-Head and Neck Surgery clinics at UNC Hospitals — Chapel Hill, North Carolina, United States

• Vanderbilt University Medical Center — Nashville, Tennessee, United States

• Harrisson Clinical Research Clinical Unit — München, Germany

• Upland ENT — Upland, California, United States
• Colorado ENT — Denver, Colorado, United States
• St. Elizabeth Medical Center — Brighton, Massachusetts, United States

Not specified

• University of Missouri, Department of Internal Medicine — Columbia, Missouri, United States

• IHA Ann Arbor Family Medicine — Ann Arbor, Michigan, United States
• IHA Family Medicine - Arbor Park — Ann Arbor, Michigan, United States
• IHA Internal Medicine - Domino's Farms — Ann Arbor, Michigan, United States
• IHA Brighton Family Care — Brighton, Michigan, United States

• St. Paul's Hospital Sinus Centre — Vancouver, British Columbia, Canada