1. Center for Health Policy, Columbia University School of Nursing, New York, New York, USA.
2. RAND Corporation, Pittsburgh, Pennsylvania, USA.
3. RAND Corporation, Boston, Massachusetts, USA.
4. Department of Medicine and Epidemiology, Columbia University Irving Medical Center, New York, New York, USA.
5. MJHS Institute for Innovation in Palliative Care, New York, New York, USA.
6. Department of Family and Social Medicine, Albert Einstein College of Medicine, Bronx, New York, USA.