[1
]
Department of Medical Ethics and Health Policy, Perelman School of Medicine, University
of Pennsylvania, Philadelphia.
[2
]
Department of Public and Occupational Health, EMGO Institute for Health and Care Research
and Cancer Center Amsterdam, VU University Medical Center, Amsterdam, the Netherlands.
[3
]
End-of-Life Care Research Group, Vrije Universiteit Brussels (VUB) and Ghent University,
Brussels, Belgium.