1. Diabetes Department; Emergency Hospital “Marie Curie”; Bucharest; Romania
2. Paediatric Department; Institute for Mother and Child Care “Alfred Rusescu”; Bucharest; Romania
3. National Institute of Hematology and Blood Transfusion-HLA Laboratory; Bucharest; Romania
4. Tampere Center for Child Health Research; University of Tampere and Tampere University Hospital; Tampere; Finland