1. Department of Otolaryngology-Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA;
2. Interacoustics A/S, Middlefart, Denmark;
3. Interacoustics US, Eden Prairie, MN, USA;
4. Northwestern Medicine, Chicago, IL, USA;
5. Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, School of Communication, Northwestern University, Evanston, IL, USA;
6. Hugh Knowles Hearing Centre, Evanston, IL, USA