1. Department of Palliative Medicine, Scripps Health, San Diego, California, USA.
2. Department of Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA.
3. Department of Emergency Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
4. Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
5. Department of Emergency Medicine, Central Michigan University College of Medicine-East Campus, Saginaw, Michigan, USA.