title: A blastogenic factor in unidirectional mixed cultures with x-irradiated cells.
mesh_terms: D002474:Cell-Free System; D004247:DNA / Q000096:biosynthesis; D006648:Histocompatibility; D006801:Humans; D066298:In Vitro Techniques; D007962:Leukocytes / Q000378:metabolism / Q000528:radiation effects*; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*; D011830:Radiation Effects; D013936:Thymidine / Q000378:metabolism; D014019:Tissue Donors; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine