1. Vaccine, Immunity and Cancer Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
2. Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
3. Protein Expression Laboratory, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
4. Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
5. Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA