title: Letter: "Per cent T cells".
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D007104:Immune Adherence Reaction; D007945:Leukemia, Lymphoid / Q000097:blood / Q000276:immunology; D007958:Leukocyte Count; D013601:T-Lymphocytes / Q000276:immunology*