title: The definition of lymphocyte activating factor: giving a helping hand to serendipity.
authors.affiliation: Laboratory of Immunology, National Eye Institute, National Institutes of Health , Bethesda, MD , USA.
authors.forename: Igal
authors.initials: I
authors.lastname: Gery
keywords: cytokines; interleukin-1; lymphocyte activating factor; macrophages; thymocytes