title: Immunochemistry symposium honoring Michael Heidelberger.
mesh_terms: D000486:Allergy and Immunology; D001634:Bibliographies as Topic; D003226:Congresses as Topic; D049672:History, 19th Century; D049673:History, 20th Century; D007120:Immunochemistry / Q000266:history; D012955:Societies, Medical; D014481:United States