1. University of Nottingham; National Institute for Health Research (NIHR) Nottingham Hearing Biomedical Research Unit; Ropewalk House, 113 The Ropewalk Nottingham UK NG1 5DU
2. Queen's Medical Centre; Nottingham Clinical Trials Unit; Room 2201 Clinical Trials Unit C Floor, South Block Nottingham UK NG7 2UH
3. VA Medical Center - NCRAR; National Center for Rehabilitative Auditory Research; 3710 SW US Veterans Hospital Road Portland USA OR 97239
4. Oregon Hearing Research Center; Department of Otolaryngology; Oregon Health & Science University 3181 SW Sam Jackson Park Road Portland USA OR 97239-3098
5. University of Ulster; Bamford Centre for Mental Health and Wellbeing; Room MI020, Magee Campus Londonderry UK BT48 7JL
6. University of Ulster; MRC All Ireland Hub for Trials Methodology Research; Northland Road Londonderry UK BT48 7JL