1. Trinkaus, J. P. in The Cell Surface in Animal Embryogenesis and Development (eds Poste, G. & Nicolson, G. L.) 225–329 (1976).
2. Stenn, K. S., Br. J. Derm. 98, 411–416 (1978).
3. Stenn, K. S. & Dvoretzky, I. Archs derm. Res. (in the press).
4. Takeuchi, S. J. Fac. Sci. Tokyo Univ. 12, 439–447, 449–456 (1972); Devl Biol. 51, 49–62 (1976).
5. Karasek, M. A. & Charleton, M. E. J. invest. Derm. 56, 205–210 (1971).