title: In vitro ageing and evolution of immunocompetence in long term normal lymphoid cell cultures.
mesh_terms: D000818:Animals; D002417:Cattle; D002470:Cell Survival; D002478:Cells, Cultured; D004912:Erythrocytes / Q000276:immunology; D006462:Hemolytic Plaque Technique; D007111:Immunity, Cellular; D037102:Lectins; D008198:Lymph Nodes / Q000166:cytology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*; D012756:Sheep / Q000276:immunology; D013154:Spleen / Q000166:cytology; D013997:Time Factors
chemical_list: D037102:Lectins