1. Department of Pediatrics, Malmö University Hospital, Lund University, Malmö, Sweden
2. Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
3. Department of Endocrinology, Malmö University Hospital, Lund University, Malmö, Sweden
4. Obstetrics and Gynecology, Malmö University Hospital, Lund University, Malmö, Sweden
5. Department of Virology, Tampere University Hospital and University of Tampere, Tampere, Finland