References
- Combs , G.F. Jr. and Combs , S.B. 1986 . The Role of Selenium in Nutrition , Orlando, FL : Academic Press .
- Vernie , L.N. 1984 . Selenium in carcinogenesis . Biochim. Biophys. Acta , 738 : 203 – 217 .
- Hockan , G. 1988 . Chemoprevention of cancer: selenium . Int. J. Biochem. , 20 : 123 – 132 .
- Bratakos , M.S. , Vouterakos , T.P. and Ioannou , P.V. 1990 . Selenium status of cancer patients in Greece . Sci. Total Environ. , 92 : 207 – 222 .
- Rotruck , J.T. , Pope , A.L. , Ganther , H.E. , Swanson , A.B. , Hafeman , D.G. and Hoekstra , W.G. 1973 . Selenium: biochemical role as a component of glu‐tathione peroxidase . Science , 179 : 588 – 590 .
- Swanson , A.A. and Truesdale , A.W. 1971 . Elemental analysis in normal and cataractous human lens tissue . Biochem. Biophys. Res. Commun. , 45 : 1488 – 1496 .
- Fiereck , E.A. 1976 . “ Analysis of calculi ” . In Fundamentals of Clinical Chemistry , 2nd edition , Edited by: Tietz , N.W. 1015 – 1025 . Philadelphia : Saunders . chapter 18,
- Bratakos , M.S. , Zafiropoulos , T.F. , Siskos , P.A. and Ioannou , P.V . 1987 . Selenium in foods produced and consumed in Greece . J. Food Sci. , 52 : 817 – 822 .
- Daniel , W.W. 1987 . Biostatistics: a Foundation for Analysis in Health Sciences , 4th edition , Singapore : Wiley .
- Robbins , S.L. and Cotran , R.S. 1981 . Pathologic Basis of Disease , 2nd edition , 1073 – 1077 . Philadelphia : Saunders .
- Small , D.M. 1968 . Gallstones . New Engl. J. Med. , 279 : 588 – 593 .
- Shaffer , E.A. and Small , D.M. 1976 . Gallstone disease: pathogenesis and management . Curr. ProbL Surg. , 13 : 1 – 72 .
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