The R elation B etween t he U se o f P sychoactive Substances a nd t he S everity o f t he I njury in a G roup o f C rash-Involved D rivers A dmitted to a R egional T rauma C enter

Department of Pharmacotherapy & Pharmaceutical Care, Groningen Research Institute for Pharmacy, University ofGroningen, Groningen, The Netherlands; Division of Pharmacoepidemiology and Pharmacotherapy, Utrecht Institute forPharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands