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2. R. J. Wurtman, in “Amino Acids: Metabolism and Medical Applications,“ ed. by G. L. Blackburn, J. P. Grant, and V. R. Young, John Wright-PSG Inc., Boston, 1983, pp. 219–224.
3. H. N. Munro, in “Amino Acids: Metabolism and Medical Applications,” ed. by G. L. Blackburn, J. P. Grant, and V. R. Young, John Wright-PSG Inc., Boston, 1983, pp. 1–12.