TYPE OF TEST : Unscheduled DNA synthesis TEST SYSTEM : Human HeLa cell DOSE/DURATION : 5 mg/L REFERENCE : PNASA6 Proceedings of the National Academy of Sciences of the United States of America. (National Academy of Sciences, Printing & Pub. Office, 2101 Constitution Ave., Washington, DC 20418) V.1- 1915- Volume(issue)/page/year: 70,3904,1973