1. Laboratory of Clinical Biochemistry; Haukeland University Hospital; Bergen Norway
2. The Norwegian Institute of Public Health; Oslo Norway
3. Institute of Health and Society; University of Oslo; Oslo Norway
4. Bevital AS; Bergen Norway
5. Centre for Clinical Research; Haukeland University Hospital; Bergen Norway
6. Medical Birth Registry of Norway; Norwegian Institute of Public Health; Bergen Norway
7. Institute of Psychiatry; University of Oslo; Oslo Norway
8. Imprints Center for Genetic and Environmental Life Course Studies; Mailman School of Public Health and New York State Psychiatric Institute; Columbia University; New York NY USA
9. Department of Public Health and Primary Health Care; University of Bergen; Bergen Norway
10. Section for Pharmacology; Institute of Medicine; University of Bergen; Bergen Norway