1. Bolooki, H., Gliedman, M. L.: Surgery 64, 466–471 (1968).
2. Edelmann, G., Boutelier, Ph.: Chirurgie 1000, 155 (1974).
3. Gjessing, J.: Act. chir. scand. 133, 645–647 (1967).
4. Gjessing, J., Tomiin, P. J.: Abstracts 1st world congress on intensive care London, p. 113 (1974).
5. Guignier, M., Brambilla, C., Brabant, A. et al.: La nouv. Presse Med. 3/24, 1559–1560 (1974).