1. Centre for Health Policy and Management, Trinity College Dublin, Ireland.
2. Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
3. Edward Kennedy Professor of Health Policy and Management, Trinity College Dublin, Ireland.
4. National Palliative Care Research Center, Hertzberg Palliative Care Institute, Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.