1. Farber, E., Adv. Cancer Res., 7, 383 (1963).
2. Farber, E., Shull, K. H., Villa-Trevino, S., Lombardi, B., and Thomas, M., Nature, 203, 34 (1964).
3. Weber, G., et al., in Adv. Enzyme Regulation, 1, 1 (1963).
4. Gottlieb, L. I., Fausto, N., and Van Lancker, J. L., J. Biol. Chem., 239, 555 (1964).
5. Villa-Trevino, S., Shull, K. H., and Farber, E., Fed. Proc., 22, 237 (1963). Natori, Y., and Tarver, H., Abstracts of 6th Internat. Congr. Biochem., 77 (1964).