1. Department of Anesthesiology, Department of Family and Preventive Medicine, Emory University, Atlanta, Georgia, USA.
2. Emory Critical Care Center, Department of Family and Preventive Medicine, Emory University, Atlanta, Georgia, USA.
3. University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
4. Department of Psychiatry and Behavioral Sciences, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
5. Emory Palliative Care Center, Department of Family and Preventive Medicine, Emory University, Atlanta, Georgia, USA.
6. Division of Pediatric General, Thoracic and Fetal Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
7. Equipa Comunitária de Suporte em Cuidados Paliativos de Sintra, Sintra, Portugal.
8. Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
9. Division of Supportive Care, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
10. Department of Medicine, Weill-Cornell Medical College, New York, New York, USA.
11. Division of Palliative Medicine, Department of Family and Preventive Medicine, Emory University, Atlanta, Georgia, USA.
12. Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
13. Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba, Canada.
14. CancerCare Manitoba Research Institute, University of Manitoba, Winnipeg, Manitoba, Canada.