Ear Diseases

• Universitätsspital Zürich, Klinik für ORL — Zurich, Switzerland

Not specified

• Thai Binh University of Medicine and Pharmacy, Thai Binh Medical University Hospital and Thai Binh Children's Hospital — Thái Bình, Vietnam

• Ankara Bilkent City Hospital Physical Therapy and Rehabilitation Hospital — Ankara, Çankaya, Turkey (Türkiye)

• University of Iowa — Iowa City, Iowa, United States

• Unitron Hearing — Kitchener, Ontario, Canada

• China Beijing TongRen Hospital, Capital Medical University Beijing, China — Beijing, Beijing Municipality, China

• Aalborg University Hospital — Aalborg, Denmark

• Haukeland University Hospital — Bergen, Norway

• Desert Clinical Research — Mesa, Arizona, United States
• Visions Clinical Research — Tucson, Arizona, United States
• Childrens Investigational Research Program — Bentonville, Arkansas, United States
• Visions Clinical Research — Boynton Beach, Florida, United States