1. Department of Internal Medicine, Supportive and Palliative Care, Christiana Care, Newark, Delaware, USA.
2. Department of Medical Social Sciences, Northwestern Feinberg School of Medicine, Chicago, Illinois, USA.
3. Department of Psychology, Tulane University, New Orleans, Louisiana, USA.
4. Tulane University School of Medicine, New Orleans, Louisiana, USA.
5. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA.