Hearing Loss, Sensorineural

• Johns Hopkins Bayview — Baltimore, Maryland, United States
• Johns Hopkins Outpatient Center — Baltimore, Maryland, United States
• Johns Hopkins Suburban — Bethesda, Maryland, United States
• Johns Hopkins Greenspring Station — Lutherville-Timonium, Maryland, United States

• Guy's and St. Thomas' NHS Foundation Trust — London, United Kingdom

Not specified

• Please check link to study webpage below for more study sites — Sofia, Bulgaria

• Phonak Audiology Research Center — Aurora, Illinois, United States

• Florida State University — Tallahassee, Florida, United States
• Northwestern University — Evanston, Illinois, United States

• Sonova US — Aurora, Illinois, United States

• Hearts for Hearing — Oklahoma City, Oklahoma, United States

• Phonak Audiology Research Center — Aurora, Illinois, United States

• Clinical Trial Site — Fresno, California, United States
• Clinical Trial Site — Torrance, California, United States
• Clinical Trial Site — Colorado Springs, Colorado, United States
• Clinical Trial Site — Boca Raton, Florida, United States