1. PharmacoEpidemiology and Drug Safety Research Group, Department of Pharmacy, and PharmaTox Strategic Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
2. Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, University of Oslo, Oslo, Norway
3. Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill
4. Department of Chronic Diseases, Norwegian Institute of Public Health, Oslo, Norway
5. Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
6. Department of Child Health and Development, Norwegian Institute of Public Health, Oslo, Norway