Early ontogeny of germinal centre formation in the chicken.
D000818:Animals; D000907:Antibodies, Bacterial; D000917:Antibody Formation; D002003:Brucella abortus / Q000276:immunology; D002642:Chick Embryo / Q000276:immunology*; D004912:Erythrocytes / Q000276:immunology; D008221:Lymphoid Tissue / Q000196:embryology*; D012710:Serum Albumin, Bovine / Q000276:immunology; D012756:Sheep
D000907:Antibodies, Bacterial; D012710:Serum Albumin, Bovine