title: Medawar Prize Lecture--the early days of the two-way paradigm for allograft reaction.
authors.forename: M
authors.initials: M
authors.lastname: Simonsen
mesh_terms: D000818:Animals; D001363:Awards and Prizes; D003718:Denmark; D004739:England; D006087:Graft vs Host Reaction; D049673:History, 20th Century; D006801:Humans; D016030:Kidney Transplantation / Q000276:immunology / Q000473:pathology; D017710:Lymphocyte Transfusion; D051379:Mice; D008815:Mice, Inbred Strains; D016038:Skin Transplantation / Q000276:immunology; D012955:Societies, Medical; D014180:Transplantation / Q000266:history; D014181:Transplantation Immunology; D014184:Transplantation, Homologous / Q000276:immunology*