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2. K. Asada, S. Kanematsu, S. Okada and T. Hayakawa, “Chemical and Biochemical Aspects of Superoxide and Superoxide Dismutase,” ed. by J. V. Bannister and H. A. O. Hill, Elsevier/North-Holland, New York, 1980, pp. 136 ~ 153.
3. H. M. Steinman, “Superoxide Dismutase,” Vol. 1, ed. by L. W. Oberley, CRC Press, Inc., Boca Raton, Florida, 1982, pp. 11 ~ 68.