1. National Addiction Centre, Institute of Psychiatry, Psychology and Neuroscience; King's College London; London UK
2. Department of Circulation and Medical Imaging; NTNU-The Norwegian University of Science and Technology; Trondheim Norway
3. Apotek 1 Nardo; Trondheim Norway
4. St. Olav's Hospital; University Hospital of Trondheim; Trondheim Norway
5. South London and Maudsley NHS Foundation Trust; London UK