TY - GEN AU - SIMONSEN,M TI - Artificial production of immunological tolerance; induced tolerance to heterologous cells and induced susceptibility to virus SN - 0028-0836 PY - 2003///0501 KW - Adaptive Immunity KW - Disease Susceptibility KW - Humans KW - Immune Tolerance KW - Immunity N1 - Publication Type: Journal Article UR - https://doi.org/10.1038/175763a0 ER -