1. Cartwright, G. E. (1950). In Copper Metabolism, edited by W. D. McElroy and B. Glass, p. 274. The John Hopkins Press, Baltimore.
2. Elsner, P., and Hornykiewicz, 0. (1954). Arch. GynJJc., 185, 251.
3. Aronoff, (1966). Gastroenterology, Gubler, C. J., Lahey, M. E., Cartwright, G. E., and Wintrobe, M. M. (1953). J. clin. Invest., 32, 405.
4. Houchin, 0. B. (1958). Clin. Chem., 4, 519.
5. Lahey, M. E., Gubler, C. J., Cartwright, G. E., and Wintrobe, M. M. (1953). J. clin. Invest., 32, 329.