1. Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
2. Cost Management and Decision Support, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
3. Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
4. Hematology/Oncology & Palliative Care, Virginia Commonwealth University, Richmond, VA 22043, USA
5. Section of Integrated Ethics, Department of Critical Care Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
6. Department of Dietetics and Nutrition, University of the Western Cape, Bellville 7535, South Africa
7. Department of Hospital Medicine, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA