1. Department of Pediatrics, Uddevalla Hospital, Uddevalla S-451 80, Sweden
2. Department of Laboratory Medicine, Norfolk and Norwich University Hospital, Norwich, Norfolk, UK
3. The American Diabetes Association (ADA), the European Association for the Study of Diabetes (EASD), the International Diabetes Federation (IDF), the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) and the International Society for Pediatric and Adolescent Diabetes (ISPAD)