title: Synthesis of DNA by the spleens of germ-free mice during the primary response to sheep red cells.
mesh_terms: D000792:Angiography; D000818:Animals; D000917:Antibody Formation; D001345:Autoradiography; D004247:DNA / Q000096:biosynthesis*; D004912:Erythrocytes / Q000276:immunology*; D005856:Germ-Free Life; D051379:Mice; D008938:Mitosis; D012756:Sheep / Q000276:immunology; D013154:Spleen / Q000166:cytology / Q000276:immunology*; D013936:Thymidine; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine