title: Presence of impairment of humoral immunity in nonadherent spleen cells of old mice.
mesh_terms: D000367:Age Factors; D000818:Animals; D000917:Antibody Formation; D000941:Antigens; D002448:Cell Adhesion; D002469:Cell Separation; D002478:Cells, Cultured; D004912:Erythrocytes / Q000276:immunology; D006462:Hemolytic Plaque Technique; D008214:Lymphocytes / Q000276:immunology*; D051379:Mice; D011506:Proteins / Q000032:analysis; D012756:Sheep / Q000276:immunology; D013154:Spleen / Q000166:cytology*
chemical_list: D000941:Antigens; D011506:Proteins