1. University College; Marie Curie Palliative Care Research Unit; 67-73 Riding House Street London UK W1W 7EJ
2. Churchill Hospital; The Fulbrook Centre; Headington Oxford UK OX3 7JU
3. University of Oxford; Radcliffe Department of Medicine; John Radcliffe Hospital Level 4, Main Hospital, Room 4401C Oxford Oxfordshire UK OX3 9DU