1. Addictions Department; Institute of Psychiatry Psychology and Neuroscience; Kings College London; London UK
2. European Monitoring Centre for Drugs and Drug Addiction (EMCDDA); Lisbon Portugal
3. Department of Biostatistics; Institute of Psychiatry Psychology and Neuroscience; Kings College London; London UK
4. The Langton Centre; Drug and Alcohol Services; South East Sydney Local Health District and Division of Addiction Medicine; Sydney University; Sydney Australia
5. Justice Health and Forensic Mental Health Network; NSW Ministry of Health; Sydney Australia
6. Sussex Partnership NHS Trust; West Sussex UK
7. Atkinson Lewis Ltd; Swansea UK
8. Tees, Esk and Wear Valleys, NHS Foundation Trust; Durham UK
9. South London and Maudsley NHS Foundation Trust; London UK