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Ebert, E.; Abu Karim, A.; Kayser, T.; Wenig, R.; Weißer, K.; Wirz, M.; Pisani, G.; Schäffner, G.; Cussler, K. [Optimisation and Establishing of Serological Methods for the Potency Testing of Immunglobulins Against Clostridium Tetani-Toxin] [Article in German]. ALTEX 1998, 15, 30-32.