1. Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical Centre University of Nottingham Nottingham UK
2. Centre of Membrane Proteins and Receptors Universities of Nottingham and Birmingham Midlands UK
3. Department of Chemistry Columbia University New York New York USA
4. Departments of Psychiatry and Molecular Pharmacology and Therapeutics Columbia University Vagelos College of Physicians and Surgeons New York New York USA
5. Division of Molecular Therapeutics New York State Psychiatric Institute New York New York USA