n.a set whose members are members of another set; a set contained within another set

The biology of human natural killer-cell subsets.
Imaging neuronal subsets in transgenic mice expressing multiple spectral variants of GFP
Protective and pathogenic functions of macrophage subsets
Human TH1 and TH2 subsets: regulation of differentiation and role in protection and immunopathology
Blood Monocytes Consist of Two Principal Subsets with Distinct Migratory Properties
Lineage relationship and protective immunity of memory CD8 T cell subsets.
Phenotypically distinct subsets of CD4+ T cells induce or protect from chronic intestinal inflammation in C. B-17 scid mice.
The chemokine receptors CXCR3 and CCR5 mark subsets of T cells associated with certain inflammatory reactions.
IDH1 and IDH2 gene mutations identify novel molecular subsets within de novo cytogenetically normal acute myeloid leukemia: a Cancer...
Quantitative Expression of Toll-Like Receptor 1–10 mRNA in Cellular Subsets of Human Peripheral Blood Mononuclear Cells and Sensiti...