title: Transfer factor and immunity: an introduction.
mesh_terms: D001782:Blood Donors; D004306:Dose-Response Relationship, Immunologic; D000939:Epitopes; D006801:Humans; D007109:Immunity; D007962:Leukocytes / Q000276:immunology; D012882:Skin Tests; D014165:Transfer Factor / Q000276:immunology*
chemical_list: D000939:Epitopes; D014165:Transfer Factor