1 Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
2 Center for Infectious Diseases Imaging, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA.
3 Translational Tumor Immunology Program, National Institute on Deafness and Other Commination Disorders, National Institutes of Health, Bethesda, MD, USA.