title: Improvement by death in immunity.
authors.forename: S J
authors.initials: SJ
authors.lastname: Martin
mesh_terms: D000818:Animals; D017209:Apoptosis; D001402:B-Lymphocytes / Q000276:immunology; D002454:Cell Differentiation; D006801:Humans; D007109:Immunity; D007694:Killer Cells, Natural / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology