1. Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
2. Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium2Instituto de Salud Global, Centre for Research in Environmental Epidemiology, Barcelona, Spain3Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
3. Department of Social and Environmental Health Research, London School of Hygiene & Tropical Medicine (LSHTM), London, England5Department of Medical Statistics, LSHTM, London, England
4. Belgian Interregional Environment Agency, Brussels, Belgium
5. Flemish Institute for Technological Research, Mol, Belgium
6. Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium8Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
7. Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium9Department of Public Health & Primary Care, Leuven University, Leuven, Belgium