1 Section of Palliative Care and Medical Ethics, Division of General Internal Medicine, Department of Medicine, University of Pittsburgh (J.W.C., H.B. R.A.), Pittsburgh, Pennsylvania, USA. Electronic address: childersjw2@upmc.edu.
2 Section of Palliative Care and Medical Ethics, Division of General Internal Medicine, Department of Medicine, University of Pittsburgh (J.W.C., H.B. R.A.), Pittsburgh, Pennsylvania, USA.