TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Bacteria - Salmonella typhimurium DOSE/DURATION : 99 pph REFERENCE : SYSWAE Shiyan Shengwu Xuebao. Journal of Experimental Biology. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1953- Suspended 1966-77. Volume(issue)/page/year: 12,41,1979