1. Adams, G.A., Kates, M., Shaw, D.H., Yaguchi, M.: Studies on the chemical constitution of cell wall lipopolysaccharides fromNeisseria perflava. Can. J. Biochem.46, 1175–1184 (1968)
2. Elin, R.J., Wolff, S.M.: Biology of endotoxin. Ann. Rev. Med.27, 127–141 (1976)
3. Galanos, C., Freudenberg, M., Hase, S., Jay, F., Ruschmann, E.: Biological activities and immunological properties of Lipid A. In: Microbiology (D. Schlessinger ed.) 269–276 Washington: Am. Soc. Microbiol. 1977
4. Guenounou, M., Agneray, J.: Induction of supressor cells by sodium periodate: the opposite expression of periodate induced lymphocyte activation in spleen cells of normal and nude mice. Immunology37, 53–59 (1979)
5. Kanamori, M.: Biological activities of endotoxins fromYersinia enterocolita. Japan. J. Microbiol.20, 273–280 (1976)