1 King's College Hospital, London, SE5 9RS, UK. victoria.metaxa@nhs.net.
2 School of Medicine, Human Health Sciences, Kyoto University, Kyoto, Japan.
3 King's College Hospital, London, SE5 9RS, UK.
4 Bloomsbury Institute of Intensive Care Medicine, University College London, London, UK.
5 Health Services Research, Epidemiology and Public Health, Sciensano, Brussels, Belgium.
6 van Dusseldorp, Delvaux en Ket, Groningen, The Netherlands.
7 Division of Primary Care and Population Health, Department of Medicine, Palliative Care Section, Stanford University, Stanford, CA, 94305, USA.
8 Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University, Stanford, CA, 94305, USA.
9 Department of Nursing, University of California, San Diego Health Sciences, San Diego, USA.
10 Centrum voor Intensive Care, Medisch Centrum Leeuwarden, PO Box 888, 8901 BR, Leeuwarden, The Netherlands.
11 Department of Anesthesiology and Intensive Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany.
12 Klinik Bavaria Kreischa, Kreischa, Germany.
13 Division of Pulmonary, Critical Care and Sleep Medicine, Cambia Palliative Care Center of Excellence at UW Medicine, University of Washington, 325 Ninth Avenue, Box 359762, Seattle, WA, 98104, USA.