title: The induction of germinal centres in germ-free chickens.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000008:administration & dosage; D001773:Blood Cells; D002645:Chickens; D005856:Germ-Free Life; D008214:Lymphocytes; D010950:Plasma Cells; D012156:Reticulocytes; D013154:Spleen / Q000033:anatomy & histology / Q000166:cytology* / Q000254:growth & development; D013210:Staphylococcus
chemical_list: D000942:Antigens, Bacterial