title: The use of germ-free piglets in the study of lymphoid tissue and germinal centre formation.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000942:Antigens, Bacterial; D002455:Cell Division; D002465:Cell Movement; D002999:Clone Cells; D004386:Duodenum / Q000166:cytology; D004926:Escherichia coli / Q000276:immunology; D005856:Germ-Free Life; D008198:Lymph Nodes / Q000166:cytology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology; D008221:Lymphoid Tissue / Q000276:immunology*; D014066:Palatine Tonsil / Q000166:cytology / Q000276:immunology; D010950:Plasma Cells / Q000276:immunology; D013154:Spleen / Q000166:cytology / Q000276:immunology; D013194:Staining and Labeling; D013552:Swine; D013950:Thymus Gland / Q000166:cytology / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial