Helen Killaspy, Mental Health Sciences Unit, University College London, Charles Bell House, 67–73 Riding House Street, London W1W 7EJ, UK. Email: [email protected]; Louise Marston, Department of Primary Care and Population Health, Rumana Z. Omar, Department of Statistical Science, Nicholas Green, Isobel Harrison, Melanie Lean, Mental Health Sciences Unit, University College London; Frank Holloway, South London and Maudsley NHS Foundation Trust; Tom Craig, Health Services Research Department, Institute of Psychiatry, King's College London, and South London and Maudsely NHS Foundation Trust; Gerard Leavey, Northern Ireland Association of Mental Health, Belfast; Michael King, Mental Health Sciences Unit, University College London, and Camden and Islington NHS Foundation Trust, UK
