1. Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland;
2. MetroHealth Medical Center, The MetroHealth System, Cleveland, Ohio,
3. National Institute on Aging, NIH, Bethesda, Maryland;
4. School of Medicine, Duke University, Durham, North Carolina,
5. Medtronic, Inc., Minneapolis, Minnesota;
6. University of California, San Francisco, California;
7. School of Medicine, University of Virginia, Charlottesville, Virginia; and
8. Center to Improve Care of the Dying, RAND, Arlington, Virginia.