1. MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, London, UK
2. National Institute for Health Research Health Protection Research Unit in Health Impact of Environmental Hazards at King's College London, a partnership with Public Health England, and collaboration with Imperial College London, London, UK
3. Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
4. Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
5. University of Basel, Basel, Switzerland
6. Centre for Educational Neuroscience, Department of Psychological Sciences, Birkbeck, University of London, London, UK