1. School of Experimental Psychology; University of Bristol; Bristol UK
2. MRC Integrative Epidemiology Unit (IEU) at the University of Bristol; Bristol UK
3. UK Centre for Tobacco and Alcohol Studies; University of Bristol; UK
4. Clinical Psychopharmacology Unit; University College London; London UK
5. Department of Medicine; Imperial College London; London UK
6. Department of Pharmacy and Pharmacology; University of Bath; Bath UK