1. Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
2. Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Université catholique de Louvain, Brussels, Belgium
3. Biomedical Research Institute, Hasselt University, Hasselt, Belgium
4. Department of Obstetrics, East-Limburg Hospital, Genk, Belgium
5. Flemish Institute for Technological Research (VITO), Mol, Belgium
6. Department of Clinical Biology, East-Limburg Hospital, Genk, Belgium
7. Belgian Interregional Environment Agency, Brussels, Belgium
8. Department of Public Health and Primary Care, Occupational and Environmental Medicine, Leuven University, Leuven, Belgium