- Correspondence to Dr Joseph Low, Marie Curie Palliative Care Research Department, Division of Psychiatry, UCL, 6th Floor, Maple House, 149 Tottenham Court Road, London W1T 7NF, UK;
- Received May 11, 2015
- Revised June 17, 2015
- Accepted July 2, 2015
- First published July 24, 2015.
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- Data supplement 1 - Online supplement
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