1. Center of Surgical & Molecular Tumor pathology, Department of Molecular Immunology & Toxicology, National Institute of Oncology, 1122 Rath Gy Street 7–9, Budapest, Hungary.
2. Clinical Cooperation Unit, Dermato-Oncology, German Cancer Research Center, Heidelberg, 69 120, Germany
3. Laboratory of Cell Mediated Immunity. SAIC-Frederick, Inc., NCI-Frederick, Frederick, MD 21 702, USA
4. Infectious Disease & Immunogenetics Section (IDIS), Departments of Translation Medicine, Clinical Center & Center for Human Immunology (CHI), National Institute of Health, Bethesda, MD 20 892, USA
5. Departments of Pathology & Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA 15 213, USA