1. Centre for Research in Epidemiology and Population Health (CESP), Villejuif, France
2. Swiss Tropical and Public Health Institute, Basel, Switzerland
3. Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
4. MRC-HPA Centre for Environment and Health, Imperial College London, London, United Kingdom
5. Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany