1. Department of Forensic Toxicology, Institute of Forensic Medicine, Kantonsspital St. Gallen, CH-9007 St. Gallen, Switzerland
2. Department of Experimental & Clinical Toxicology, Institute of Experimental & Clinical Pharmacology & Toxicology, Saarland University, D 66421 Homburg (Saar), Germany
3. Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
4. Department of Clinical Pharmacology & Pharmacoepidemiology, Heidelberg University Hospital, Heidelberg, Germany