title: T cell response: nature or nurture.
mesh_terms: D002454:Cell Differentiation; D005802:Genes, MHC Class II; D006183:H-2 Antigens; D013601:T-Lymphocytes / Q000166:cytology / Q000276:immunology*; D013950:Thymus Gland / Q000276:immunology*
chemical_list: D006183:H-2 Antigens