1. Psychopharmacology, Drug Misuse and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences University of Hertfordshire Hatfield UK
2. East London Foundation Trust (ELFT) Homerton University Hospital London UK
3. Department of Health Sciences University of Milan Milan Italy
4. Gabalfa Clinic, Cardiff and Vale NHS Health Board Cardiff UK
5. Swansea University Medical School; Institute of Life Sciences; Swansea UK
6. Addictions' Observatory (ODDPSS), Rome Italy
7. Guglielmo Marconi University Rome Italy
8. Department of Mental Health, ASL Roma 2 Rome Italy