1. Medical Department M (Endocrinology and Diabetes) and the Medical Research Laboratories, Aarhus University Hospital, Aarhus Hospital NBG, Noerrebrogade 44, DK – 8000 Aarhus C
2. Pediatric Unit, Hilleroed Hospital, Helsevej 2, DK – 3400 Hilleroed, Denmark
3. Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus Hospital NBG, Noerrebrogade 44, DK – 8000 Aarhus C, Denmark
4. Department of Autoimmunology, Statens Serum Institut, Artillerivej 5, DK – 2300 Copenhagen, Denmark
5. Childrens Hospital, Glostrup Hospital, Nordre Ringvej 57, DK – 2600 Glostrup, Denmark