1. Center for Clinical Studies, University Hospital Regensburg, Germany
2. Otosul, Otorrinolaringologia Sul-Fluminense, Volta Redonda, Brazil
3. Tinnitus Research Initiative Tinnitus Clinics Network
4. Centro de Tratamento e Pesquisa em Zumbido, Belo Horizonte, Brazil
5. Otolaryngology Department, University of São Paulo Medical School, São Paulo, Brazil
6. Department of Otolaryngology, University of Regensburg, Germany
7. Brain & TRI Tinnitus Clinic, Department of Neurosurgery, University of Antwerp, Belgium
8. Department of Psychiatry, Psychosomatics and Psychotherapy, University Regensburg, Germany