1. Third Faculty of Medicine, Charles University, Prague, Czech Republic
2. Center for Palliative Care, Prague, Czech Republic
3. Department of Medicine, Center for Research on Health Care Data Center, University of Pittsburgh, Pittsburgh, PA, USA
4. Section of Palliative Care and Medical Ethics, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA, USA
5. Palliative Research Center, University of Pittsburgh and Division of General Internal Medicine, University of Pittsburgh, Pittsburgh, PA, USA
6. Division of General Internal Medicine, Section of Palliative Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
7. Division of General Internal Medicine, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA, USA
8. Program on Ethics and Decision Making in Critical Illness, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
9. School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA