1. Children's Diabetes Center Nijmegen; Nijmegen The Netherlands
2. Department of Psychology; Radboud University Medical Center; Nijmegen The Netherlands
3. Department of Paediatric Psychology; Tilburg University; Tilburg The Netherlands
4. Department of Psychology; Canisius Wilhelmina Hospital; Nijmegen The Netherlands
5. Department of Paediatrics; Radboud University Medical Center; Nijmegen The Netherlands
6. Behavioural Science Institute; Radboud University; Nijmegen The Netherlands