1. Developmental Endocrinology Research Group; Clinical Molecular and Genetics Unit; Institute of Child Health; University College London; London UK
2. Children and Young Persons Diabetes Service; University College London Hospitals; London UK
3. Diabetes Centre for Children and Adolescents; Kinderkrankenhaus auf der Bult; Hannover Germany
4. Department of Paediatrics; Uddevalla Hospital; Uddevalla Sweden