1. Division of Palliative Care, University of British Columbia, and Victoria Hospice Society, Victoria
2. School of Health Information Science, University of Victoria, Victoria
3. Department of Mathematics and Statistics, University of Victoria, Victoria
4. Statistical Consulting Centre, University of Victoria, Victoria
5. School of Health Information Science, University of Victoria, Victoria, British Columbia, Canada
6. School of Medicine, University of North Carolina, Chapel Hill, North Carolina
7. University of Louisville, Louisville, Kentucky
8. University of Alabama, Tuscaloosa, Alabama
9. Hospice of Lancaster County, Lancaster, Pennsylvania
10. Division of Geriatric Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA