Tinnitus

• Department of Otolaryngology, Laryngological Oncology, Audiology and Phoniatrics, Teaching Hospital of Medical university of Lodz, Poland — Lodz, Lodz, Zeromskiego 113 Street, Poland

• DOXA Institute — Milan, Italy

• Philipps University Marburg, Dept. of Psychology, Division of Clinical Psychology and Psychotherapy — Marburg, Hesse, Germany

• Antwerp University Hospital — Edegem, Antwerp, Belgium

• University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States

• Universitätsmedizin Berlin, Tinnituszentrum der Charité — Berlin, Germany
• University Hospital Zurich — Zurich, Canton of Zurich, Switzerland

• University at Buffalo — Buffalo, New York, United States

Not specified

• VA Portland Health Care System, National Center for Rehabilitative Auditory Research — Portland, Oregon, United States

• University of Nottingham — Nottingham, Nottinghamshire, United Kingdom