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42. Jukes, T. H., personal communication to Moyer, A. W., and du Vigneaud, V., 



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45. du Vigneaud, V., Simmonds, S., Chandler, J. P., and Cohn, M., J. Biol. Chem., 



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46. du Vigneaud, V., Chandler, J. P., Cohn, M., and Brown, G. B., J. Biol. Chem., 



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47. Dubnoff, J. W., and Borsook, H., Federation Proc, 7, 152 (1948). 



48. McArthur, C. S., Science, 104, 222 (1946). 



49. McArthur, C. S., Lucas, C. C, and Best, C. H., Biochem. J., 41, 612 (1948). 



50. Keston, A. S., and Wortis, S. B., Proc. Soc. Exptl. Biol. Med., 61, 439 (1946). 



51. Wilson, J. E., and du Vigneaud, V., Science, 107, 653 (1948). 



52. Wilson, J. W., and Leduc, E. H., Federation Proc, 8, 169 (1949). 



53. Dyer, H. M., J. Biol. Chem., 124, 519 (1938). 



54. Harris, J. S., and Kohn, H. I., J. Pharmacol. Exptl. Therap., 73, 383 (1941). 



55. Stekol, J. A., and Weiss, K., /. Biol. Chem., 179, 1049 (1949). 



56. Eastcott, E. V., J. Phys. Chem., 32, 1094 (1928). 



57. Williams, R. J., and Saunders, D. H., Biochem. J., 28, 1887 (1934). 



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59. Buston, H. W., and Pramanik, B. N., Biochem. J., 25, 1656 (1931). 



60. Kogl, F., and Fries, N., Z. Physiol. Chem., 249, 93 (1937). 



61. Schopfer, W. H., Helv. Chim. Acta, 27, 1017 (1944). 



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63. Beadle, G. W., J. Biol. Chem., 156, 683 (1944). 



64. Woolley, D. W., Science, 92, 384 (1940). 



65. Woolley, D. W., J. Biol. Chem., 139, 29 (1941). 



66. Gavin, G., and McHenry, E. W., J. Biol. Chem., 139, 485 (1941). 



67. Gavin, G., Patterson, J. M., and McHenry, E. W., J. Biol. Chem., 148, 275 



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