title: Lymphocytes and the immune response. I.
mesh_terms: D000818:Animals; D000921:Antibody-Producing Cells; D001717:Birds; D002060:Bursa of Fabricius / Q000276:immunology; D002454:Cell Differentiation; D002470:Cell Survival; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007111:Immunity, Cellular; D008198:Lymph Nodes / Q000276:immunology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000032:analysis / Q000276:immunology*; D051381:Rats; D013154:Spleen / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology