TY - GEN AU - Klein,G TI - Immune surveillance--a powerful mechanism with a limited range SN - 0083-1921 PY - 1977///0611 KW - AKR murine leukemia virus KW - immunology KW - Africa KW - Animals KW - Antibodies, Viral KW - Antigens, Neoplasm KW - Burkitt Lymphoma KW - Cell Line KW - Female KW - Genes KW - Herpesvirus 4, Human KW - Histocompatibility KW - Humans KW - Immunity KW - Lymphocytes KW - Maternal-Fetal Exchange KW - Mice KW - Nasopharyngeal Neoplasms KW - microbiology KW - Neoplasm Regression, Spontaneous KW - Neoplasms KW - genetics KW - Neoplasms, Experimental KW - etiology KW - Polyomavirus KW - Pregnancy N1 - Publication Type: Journal Article; Review ER -