1. Department of Pediatrics and Adolescent Medicine; Medical University Vienna; Austria
2. Epidemiology and Medical Biometry; University of Ulm; Germany
3. German Center for Diabetes Research (DZD); München-Neuherberg Germany
4. Department of Pediatrics; University of Bonn; Germany
5. Department of Pediatrics; University of Greifswald; Germany
6. Department of Pediatrics; University Hospital Jena; Germany
7. Children's Hospital Auf der Bult; Hannover Germany