1. Department of Pediatrics Gynaecology and Obstetrics Faculty of Medicine, University of Geneva Geneva Switzerland
2. Department of Psychiatry Faculty of Medicine, University of Geneva Geneva Switzerland
3. Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King’s College London London UK
4. UK National Institute for Health Research (NIHR) Biomedical Research Centre for Mental Health, South London and Maudsley Hospital London UK
5. National Centre for Register‐based Research, Aarhus Business and Social Sciences, Aarhus University Aarhus Denmark
6. Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
7. Department of Biostatistics & Health Informatics Institute of Psychiatry, Psychology & Neuroscience, King’s College London London UK
8. Icahn School of Medicine at Mount Sinai Charles Bronfman Institute for Personalized Medicine New York New York USA
9. Department of Psychiatry University of North Carolina at Chapel Hill Chapel Hill NC USA
10. Department of Nutrition University of North Carolina at Chapel Hill Chapel Hill NC USA
11. Great Ormond Street Institute of Child Health, University College London London UK