1. University Health Care Research Centre, Faculty of Medicine and Health Örebro University Örebro Sweden
2. Audiological Research Centre, Faculty of Medicine and Health Örebro University Örebro Sweden
3. National Resource Center for Deafblindness Lund Sweden
4. Department of Pediatrics, Faculty of Medicine and Health Örebro University Örebro Sweden
5. Faculty of Medicine and Health, School of Health Sciences Örebro University Örebro Sweden