1. Laboratory of Toxicology and Applied Pharmacology, Catholic University of Louvain, Brussels, Belgium
2. Université Pierre et Marie Curie (Paris 6), Medical School Saint-Antoine, Paris, France
3. INSERM (Institut national de la sante et de la recherche medicale) U707 EPAR (Epidémiologie des maladies allergiques et respiratoires), Paris, France
4. Division of Hypertension and Cardiovascular Rehabilitation, University of Leuven, Leuven, Belgium
5. Department of Epidemiology, Maastricht University, Maastricht, the Netherlands