title: Letter: Age-related changes in T and B cells.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000375:Aging; D000818:Animals; D001323:Autoantibodies / Q000302:isolation & purification; D001402:B-Lymphocytes / Q000166:cytology / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D007104:Immune Adherence Reaction; D007231:Infant, Newborn; D037102:Lectins / Q000494:pharmacology; D007958:Leukocyte Count; D008875:Middle Aged; D011817:Rabbits; D012756:Sheep / Q000276:immunology; D013601:T-Lymphocytes / Q000166:cytology / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D037102:Lectins