title: Patterns of migration of labelled blood lymphocyte subpopulations: evidence for two types of Peyer's patch in the young pig.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000166:cytology; D002465:Cell Movement; D005260:Female; D005333:Fetus / Q000276:immunology; D005856:Germ-Free Life; D008214:Lymphocytes / Q000166:cytology*; D008215:Lymphocytes, Null / Q000166:cytology; D008221:Lymphoid Tissue / Q000166:cytology; D010581:Peyer's Patches / Q000166:cytology*; D013552:Swine / Q000033:anatomy & histology* / Q000196:embryology / Q000276:immunology; D013601:T-Lymphocytes / Q000166:cytology; D013934:Thymectomy