1 Division of Neurocritical Care, Departments of Neurology and Neurosurgery, MacLean Center for Clinical Medical Ethics, The University of Chicago Medicine, University of Chicago Medical Center, 5841 S. Maryland Avenue, Chicago, IL, 60637, USA. lazaridis@uchicagomedicine.org.
2 Division of Neurocritical Care, Departments of Neurology and Neurosurgery, MacLean Center for Clinical Medical Ethics, The University of Chicago Medicine, University of Chicago Medical Center, 5841 S. Maryland Avenue, Chicago, IL, 60637, USA.