Immunological memory: cell selection.
D000486:Allergy and Immunology / Q000266:history; D000818:Animals; D000906:Antibodies / Q000276:immunology; D002450:Cell Communication; D005060:Europe; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D007156:Immunologic Memory
D000906:Antibodies