title: Letter: Lymphocyte response.
mesh_terms: D000367:Age Factors; D000368:Aged; D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D002478:Cells, Cultured; D006801:Humans; D007104:Immune Adherence Reaction; D037102:Lectins / Q000494:pharmacology; D008213:Lymphocyte Activation; D007959:Lymphocyte Culture Test, Mixed; D012213:Rheumatic Fever / Q000276:immunology; D012756:Sheep; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D037102:Lectins