1. Spector, A. A., K. John and J. E. Fletcher, J. Lipid Res. 10:56–67 (1969).
2. Chen, R. F., J. Biol. Chem. 242:173–181 (1967).
3. Gornall, A. G., C. J. Bardwill, and M. M. David, Ibid. 177:751–766 (1949).
4. Aschaffenburg, R., and J. Drewry, Nature 176:218–219 (1955).
5. Fraenkel-Conrat, H., R. C. Bean and H. Lineweaver, J. Biol. Chem. 177:385–403 (1949).