Tinnitus

• VA Portland Health Care System, Portland, OR — Portland, Oregon, United States

• University of California Irvine Medical Center — Orange, California, United States

• Dalin Tzu Chi General Hospital — Chiayi City, Taiwan

• Lamar University — Beaumont, Texas, United States

• Lamar University — Beaumont, Texas, United States

• Lamar University — Beaumont, Texas, United States

Not specified

• Norfolk and Norwich University Hospital — Norwich, Norfolk, United Kingdom
• Hinchingbrooke Hospital — Huntingdon, United Kingdom
• Milton Keynes University Hospital — Milton Keynes, United Kingdom

• Vision and hearing Sciences, Anglia Ruskin Univeristy — Cambridge, United Kingdom

• The HEARing CRC — Melbourne, Victoria, Australia