title: On the origin of lymphoid cells in the palatine tonsil.
mesh_terms: D000818:Animals; D003036:Cobalt Isotopes; D008198:Lymph Nodes / Q000166:cytology* / Q000528:radiation effects; D008221:Lymphoid Tissue / Q000166:cytology*; D014066:Palatine Tonsil / Q000166:cytology* / Q000528:radiation effects; D011817:Rabbits; D011830:Radiation Effects; D013601:T-Lymphocytes; D013934:Thymectomy
chemical_list: D003036:Cobalt Isotopes