1 Cambia Palliative Care Center of Excellence at UW Medicine, A. Bruce Montgomery-American Lung Association Endowed Chair in Pulmonary and Critical Care Medicine, Harborview Medical Center, University of Washington, 325 Ninth Avenue, Box 359762, Seattle, WA, 98104, USA. jrc@u.washington.edu.
2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA. jrc@u.washington.edu.
3 Cicely Saunders Institute of Palliative Care, Policy, and Rehabilitation, King's College London, London, UK.
4 Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.