1. Fukushima, H., S. Aono, and H. Nakatani, J. Nutr. 96:15 (1968).
2. Nakatani, H., S. Aono, Y. Suzuki, H. Fukushima, Y. Nakamura, and K. Toki, Atherosclerosis 12:307 (1970).
3. Levine, J., and B. Zak, Clin. Chim. Acta 10:381 (1964).
4. Kesseler, G., and H. Lederer, in “Automation in Analytical Chemistry,” Edited by L.T. Skeggs, New York, NY, 1965, p. 341.
5. Lindberg, O., and L. Ernster, in “Methods of Biochemical Analysis,” Vol. 3, Edited by D. Glick, Interscience Publishers, New York, NY, 1955, p. 4.