1. Diabeter, Center for Type 1 Diabetes Care and Research, Rotterdam, The Netherlands.
2. Department of Pediatric Endocrinology, Erasmus Medical Center, Rotterdam, The Netherlands.
3. Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
4. Department of Medical Psychology, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
5. Department of Medical and Clinical Psychology, Center of Research on Psychological Disorders and Somatic Diseases (CoRPS), Tilburg University, Tilburg, The Netherlands.