Institution: | 1. Pain and Palliative Care Service, 10 Center Drive, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA;2. Division of General Internal Medicine, Program in Palliative Care, The Johns Hopkins University School of Medicine, 600 North Wolfe Street, Blalock 359, Baltimore, MD 21287, USA;3. University of Cambridge School of Clinical Medicine, Forvie Site, Robinson Way, Cambridge CB2 0SR, UK |