[1
]
Academic Unit of Palliative Care, Leeds Institute of Health Sciences, University of
Leeds, Leeds, UK. Electronic address: y.fu@leeds.ac.uk.
[2
]
NHS Highland Research, Development and Innovation Division, Centre for Health Sciences,
Inverness, UK.
[3
]
Department of Respiratory Medicine, St James's University Hospital, Leeds, UK.
[4
]
Highland Hospice, NHS Highland, Inverness, UK.
[5
]
School of Computing, University of Leeds, Leeds, UK.
[6
]
Polibienestar Research Institute, University of Valencia, Valencia, Spain.
[7
]
Academic Unit of Palliative Care, Leeds Institute of Health Sciences, University of
Leeds, Leeds, UK.