title: Immunological maturation. Preferential proliferation of high-affinity precursor cells.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000921:Antibody-Producing Cells / Q000254:growth & development*; D001345:Autoradiography; D001666:Binding Sites, Antibody; D002455:Cell Division; D004140:Dinitrophenols / Q000008:administration & dosage; D006168:Guinea Pigs; D006462:Hemolytic Plaque Technique; D007114:Immunization; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D004140:Dinitrophenols; D014316:Tritium; D013936:Thymidine