1. Division of Psychiatry, University College London, 6th Floor, Maple House, 149 Tottenham Court Road, London, W1T 7NF, UK
2. Marie Curie Palliative Care Research Department, Division of Psychiatry, University College London, 6th Floor, Maple House, 149 Tottenham Court Road, London, W1T 7NF, UK
3. Barnet Enfield & Haringey Mental Health Trust Liaison Team, North Middlesex University Hospital, Sterling Way, London, N18 1QX, UK