1. Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina USA
2. Norwegian Institute of Public Health, Oslo, Norway
3. Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina USA
4. Department of Environmental Exposure and Epidemiology, Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
5. Department of Biological Sciences, North Carolina State University, Raleigh, North Carolina USA
6. Oslo University Hospital, Oslo, Norway
7. Department of Child Health and Development, Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
8. Department of Mental Disorders, Division of Mental and Physical health, Norwegian Institute of Public Health, Oslo, Norway
9. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
10. Department of Statistical Science and Global Health Institute, Duke University, Durham, North Carolina USA