title: A license to remember.
authors.forename: Philip G
authors.initials: PG
authors.lastname: Ashton-Rickardt
mesh_terms: D000818:Animals; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology*; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology*; D007156:Immunologic Memory / Q000276:immunology*; D051379:Mice; D008954:Models, Biological; D018139:Simplexvirus / Q000276:immunology