1. Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, CH-8006 Zurich, Switzerland
2. AB Sciex Switzerland GmbH, SCIEX, CH-5401 Baden, Switzerland
3. Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, CH-8006 Zurich, Switzerland