1. School of Pharmacy and Biomolecular Sciences; Liverpool John Moores University; Byrom Street Liverpool L3 3AF UK
2. Department of Pharmacology and Therapeutics, School of Medicine, Trinity Centre for Health Sciences, St James's Hospital; Dublin 8 D08W9RT Ireland
3. State Bureau of Criminal Investigation Schleswig-Holstein; Section Narcotics/Toxicology, Mühlenweg 166 D-24116 Kiel Germany
4. Alere Forensics (Forensics Ltd), Malvern Hills Science Park; Geraldine Road WR14 3SZ UK
5. Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy; University of the Sciences; 600 South 43rd Street Philadelphia PA 19104 USA
6. Synex Synthetics BV; Poortweg 4, 2612 PA, Delft the Netherlands
7. Division of Chemical Biology and Medicinal Chemistry; University of North Carolina; Genetic Medicine Building, 120 Mason Farm Road Chapel Hill NC 27599 USA
8. Department of Psychiatry; University of California San Diego; 9500 Gilman Drive La Jolla CA 92093-0804 USA