1. Institute and Policlinic for Occupational Medicine, Environmental Medicine and Prevention Research, University Hospital of Cologne, Cologne, Germany
2. Institute for Medical Statistics and Computational Biology (IMSB), Faculty of Medicine & University Hospital of Cologne, Cologne, Germany
3. School of Public Health, Curtin University, Perth, Western Australia, Australia
4. Population Epidemiology, Murdoch Childrens Research Institute, University of Melbourne, Melbourne, Australia
5. Nuffield Department of Clinical Neurosciences, Sleep and Circadian Neuroscience Institute, OMPI G, Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
6. Braun School of Public Health and Community Medicine, Hadassah-Hebrew University, Jerusalem, Israel
7. Departments of Pediatrics and Obstetrics and Gynecology, and Division of Epidemiology, Ohio State University, Columbus, Ohio, USA
8. Center for Perinatal Research, The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio, USA
9. Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
10. Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
11. Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
12. Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland, USA
13. The George Institute for Global Health, University of Oxford, UK