title: Regulatory substances produced by lymphocytes--IV. Further characterization of the inhibitor of DNA synthesis (IDS).
mesh_terms: D000818:Animals; D004247:DNA / Q000096:biosynthesis; D004589:Electrophoresis, Disc; D007106:Immune Sera; D007164:Immunosorbents; D008214:Lymphocytes / Q000276:immunology*; D008222:Lymphokines / Q000032:analysis* / Q000302:isolation & purification; D051381:Rats; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D007106:Immune Sera; D007164:Immunosorbents; D008222:Lymphokines; D004247:DNA