6Rotruck T.Kletal.selenium:BiochemicalRole as a Component of Glutathione Peroxidase.Science.1997,179:588-590.
7Rotruck T K,et al,selenium:Biochemical Role as a Component of Glutathione Peroxidase.Scienee.1997.179:588-590.
8Roy M,Kiremidjian SL,Wishe-HI,etal.Effect of Selenium on the Expression of high Affinity Interleukin 2 Receptors.Proc-Soc-Exp-Biol-Med,1992,200:36-43.