1. Leiden University, The Netherlands
2. Dutch Foundation for the Deaf and Hard of Hearing Child, The Netherlands
3. Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimento Humano, Universidade de Évora, Portugal
4. Comprehensive Health Research Center (CHrC), Universidade de Évora, Portugal
5. University of Twente, The Netherlands
6. University College London, UK