1. Department of Undergraduate Medical Education University of Texas Southwestern Medical Center Dallas Texas USA
2. Division of Hematology and Oncology, Department of Internal Medicine University of Texas Southwestern Medical Center Dallas Texas USA
3. Parkland Health Dallas Texas USA
4. Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine University of Texas Southwestern Medical Center Dallas Texas USA
5. Department of Pathology University of Texas Southwestern Medical Center Dallas Texas USA