title: Cyclic entry into differentiation of immunologically competent cells.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000921:Antibody-Producing Cells; D003348:Cortisone / Q000494:pharmacology; D004168:Diphtheria Toxoid; D004305:Dose-Response Relationship, Drug; D004307:Dose-Response Relationship, Radiation; D005455:Fluorescent Antibody Technique; D006168:Guinea Pigs; D007106:Immune Sera; D007114:Immunization; D008198:Lymph Nodes / Q000166:cytology* / Q000187:drug effects / Q000276:immunology / Q000528:radiation effects; D011817:Rabbits; D011830:Radiation Effects; D013997:Time Factors
chemical_list: D004168:Diphtheria Toxoid; D007106:Immune Sera; D003348:Cortisone