Published on in Vol 23, No 9 (2021): September
1 Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
2 Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, United States
3 Palliative and Advanced Illness Research Center, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
4 Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA, United States
5 Department of Anesthesia and Critical Care, University of Pennsylvania, Philadelphia, PA, United States