title: Ontogeny of natural killer cells.
mesh_terms: D006410:Hematopoiesis; D006801:Humans; D007694:Killer Cells, Natural / Q000502:physiology*; D011948:Receptors, Antigen, T-Cell / Q000502:physiology; D013601:T-Lymphocytes / Q000502:physiology
chemical_list: D011948:Receptors, Antigen, T-Cell