Affiliation: | 1.Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC 20007, USA;2.Basic Research Program, SAIC-Frederick, Inc., National Cancer Institute at Frederick (NCI-Frederick), Frederick, Maryland 21702, USA;3.Center for Cancer Research Nanobiology Program, National Cancer Institute at Frederick (NCI-Frederick), Frederick, Maryland 21702, USA |