title: Themis imposes new law and order on positive selection.
authors.forename: Paul M
authors.initials: PM
authors.lastname: Allen
mesh_terms: D000818:Animals; D015496:CD4-Positive T-Lymphocytes / Q000166:cytology / Q000276:immunology* / Q000502:physiology; D018414:CD8-Positive T-Lymphocytes / Q000166:cytology / Q000276:immunology* / Q000502:physiology; D002454:Cell Differentiation; D019070:Cell Lineage; D002470:Cell Survival; D051379:Mice; D011948:Receptors, Antigen, T-Cell / Q000235:genetics / Q000276:immunology / Q000502:physiology*; D015398:Signal Transduction
chemical_list: D011948:Receptors, Antigen, T-Cell