1. Toxicological Center; University of Antwerp; Universiteitsplein 1 2610 Antwerp Belgium
2. Department of Analytical Chemistry, Faculty of Chemistry; University of Bucharest; Panduri 90-92 Bucharest Romania
3. Department of Clinical Pharmacology/Clinical Toxicology; University of Antwerp, Antwerp University Hospital; Universiteitsplein 1 2610 Antwerp Belgium