1. Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia, USA.
2. Department of Surgery and Department of Hematology & Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA.
3. Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.
4. Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.