1. Satoh, G. J. Z., and Mishima, Y., Fed. Proc., 25, 294 (1966).
2. Satoh, G. J. Z., and Mishima, Y., J. Invest. Derm., 48, 303 (1967).
3. Chian, L. T. Y., and Wilgram, G. F., Fed. Proc., 25, 424 (1966).
4. Chian, L. T. Y., and Wilgram, G. F., Science, 155, 198 (1967).
5. Mishima, Y., and Cooper, M. (unpublished data).