title: The Koch phenomenon and delayed hypersensitivity: 1891-1991.
authors.forename: G H
authors.initials: GH
authors.lastname: Bothamley
authors.forename: J M
authors.initials: JM
authors.lastname: Grange
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000266:history*; D007111:Immunity, Cellular; D014373:Tuberculin / Q000276:immunology; D014374:Tuberculin Test / Q000266:history*; D014376:Tuberculosis / Q000266:history* / Q000276:immunology
chemical_list: D014373:Tuberculin