1. R. D. Rosenberg and P. S. Damus, J. Biol. Chem. 248, 6490 (1973).
2. R. I. Leininger in Biophysical Mechanisms in Vacular Homeostasis and Intravascular Thrombosis, P. N. Sawyer, Ed., Appleton-Centry-Crofts, N.Y., 1965.
3. M. H. Waxman, B. R. Sundheim and H. P. Gregor, J. Phys. Chem., 57, 969 (1953).
4. H. P. Gregor in Polyelectrolytes, E. Selegny, Ed., Reidel, Holland, 1974.
5. See egs. H. Tiedemann et al., Science, 164 (1969).