1. Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center , Dallas, Texas , USA
2. Department of Internal Medicine, Parkland Health , Dallas, Texas , USA
3. Department of Physician Assistant Studies, Chapman University , Orange, California , USA
4. Department of Internal Medicine, Division of Hematology and Oncology, University of Texas Southwestern Medical Center , Dallas, Texas , USA
5. Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Inc, Frederick National Laboratory for Cancer Research , Frederick, Maryland , USA
6. Department of General Oncology, University of Texas MD Anderson Cancer Center , Houston, Texas , USA