title: Studies on the mechanism of action of proliferation inhibitory factor (PIF).
mesh_terms: D002448:Cell Adhesion; D002455:Cell Division; D002478:Cells, Cultured; D003470:Culture Media; D004247:DNA / Q000096:biosynthesis; D003956:Dialysis; D006367:HeLa Cells; D037102:Lectins; D008214:Lymphocytes / Q000276:immunology; D008222:Lymphokines; D008938:Mitosis; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium
chemical_list: D003470:Culture Media; D037102:Lectins; D008222:Lymphokines; D014316:Tritium; D004247:DNA; D013936:Thymidine