1. Division of Infectious Diseases, The Ohio State University, Columbus, OH, USA
2. Division of Hematology, The Ohio State University, Columbus, OH, USA
3. Department of Radiation Oncology, The Ohio State Comprehensive Cancer Center, Columbus, OH, USA
4. Division of Infectious Diseases, Yale School of Medicine, New Haven, CT, USA
5. Division of Epidemiology, The Ohio State University College of Public Health, Columbus, OH, USA