1) Fürst, P., Zimmerman, L., Bergström, J.: Determination of endogenous middle molecules in normal and uremic body fluids. Clin. Nephrol. 5: 178, 1976.
2) Leber, H. W., Baumgarter, C., Goubeaud, G., Matthias, R., Schutterle, G.: Globin synthesis in uremia. Proc. Europ. Dial. Transpl. Ass. 12: 325, 1974.
3) Dzurik, J. A. R., Hupkova, V., Cernacek, P., Valovicova, E., Niederland, T. R., Dolinkova, D., Mayskova, A., Obornikova, A.: The isolation of an inhibitor of glucose utilization from the serum of uremic subjects. Clin. Chim. Acta. 46: 77, 1973.
4) Funck-Brentano, J. L., Man, N. K., Sausse, A., Zinggraf, J., Boudet, J., Becker, A., Ceuille, G. F.: Characterization of a 1100-1300 MW neurotoxin. Trans. Am. Soc. Artif. Int. Organs. 22: 163, 1976.