1. Environmental Risk and Health unit, Flemish Institute for Technological Research (VITO), Mol, Belgium
2. Measure, Model & Manage Bioresponses (M3-BIORES), Department of Biosystems, KU Leuven, Leuven, Belgium
3. Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
4. Department of Research and Education, CIRO, Horn, The Netherlands
5. REVAL - Rehabilitation Research Center, BIOMED - Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
6. Department of Respiratory Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands