1. Department of Endocrinology, Metabolism and Diabetes (H.F.),171 76 Stockholm, Sweden;
2. Department of Molecular Medicine and Surgery (H.F.), 171 76 Stockholm, Sweden;
3. Department of Clinical Neuroscience (L.F.), 171 76 Stockholm, Sweden;
4. Child and Adolescent Psychiatry Research Center (L.F.), Stockholm, SE-11330, Sweden;
5. Department of Medical Epidemiology and Biostatistics (C.N., C.A.), 171 76 Stockholm, Sweden;
6. Department of Obstetrics and Gynecology (A.L.H.), Karolinska University Hospital, 171 76 Stockholm, Sweden;
7. Department of Women's and Children's Health (A.L.H., Ag.N., An.N.), Karolinska Institutet, 171 76 Stockholm, Sweden;
8. Lung and Allergy Unit, (C.A.), 171 76 Solna, Sweden
9. Department of Paediatric Surgery (Ag.N), 171 76 Solna, Sweden
10. Department of Paediatric Endocrinology (An.N.), Astrid Lindgren Children's Hospital, Karolinska Institutet, 171 76 Solna, Sweden