1. Ear Health Group, Telethon Kids Institute, The University of Western, Nedlands, Western Australia;
2. Division of Paediatrics, School of Medicine, The University of Western, Crawley, Australia;
3. Department of Audiology, Perth Children’s Hospital, Nedlands, Western Australia;
4. Cochrane Work Review Group, University of Eastern Finland, Kuopio, Finland;
5. Division of Applied Research and Technology, National Institute for Occupational Safety and Health, Washington, DC, USA