title: Responses to Cohn's discussion on the Zinkernagel-Hengartner 'Credo 2004'.
authors.affiliation: Institute of Experimental Immunology, University Hospital Zurich, Zurich, Switzerland. rolf.zinkernagel@usz.ch
authors.forename: R
authors.initials: R
authors.lastname: Zinkernagel
authors.forename: H
authors.initials: H
authors.lastname: Hengartner
mesh_terms: D000818:Animals; D006801:Humans; D007107:Immune System / Q000276:immunology*; D007239:Infections / Q000276:immunology*; D014611:Vaccination