| Affiliation: | 1. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;2. Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;3. Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Biomedical Services, American Red Cross, Baltimore, Maryland, USA;4. Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;5. Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA |
