1. Yu. A. Dykhno, “Silicone rubber and bulk plastic for soft tissues,” Candidate's Dissertation, Moscow (1969).
2. L. I. Giller, “Development and clinical use of new molded materials based on polydimethylsiloxane rubber,” Candidate's Dissertation, Moscow (1969).
3. R. N. Mils and F. M. L'yus, Silicones [in Russian], Moscow (1964), p. 255.
4. R. Schumann and H. D. Taubert, Acta Biol. Med. Germ.,24, 897 (1970).
5. J. Folkman, S. Winsey, and T. Moghul, Anesthesiology,29, 410 (1968).