Endolymphatic Hydrops

• Norfolk & Norwich University Hospital — Norwich, Norfolk, United Kingdom

Not specified

• Pfizer Investigational Site — Bondi Junction, New South Wales, Australia
• Pfizer Investigational Site — Brisbane, Queensland, Australia
• Pfizer Investigational Site — East Melbourne, Victoria, Australia
• Pfizer Investigational Site — Melbourne, Victoria, Australia

• Imperial college Healthcare NHS Trust — London, United Kingdom

• University of North Carolina at Chapel Hill — Chapel Hill, North Carolina, United States

• North Shore-LIJ Hearing and Speech Center — New Hyde Park, New York, United States

• Heatherwood & Wexham Park Hospitals — Berkshire, United Kingdom
• Birmingham University Hospital — Birmingham, United Kingdom
• BMI The Edgbaston Hospital — Birmingham, United Kingdom
• Southmead Hospital Bristol — Bristol, United Kingdom

• Department of Otolaryngology, Osaka University, School of Medicine — Suita, Osaka, Japan

Not specified

• Long Island Jewish Medical Center, Hearing & Speech Center — New Hyde Park, New York, United States