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Berger, Peter; Schwarz, Siegfried; Spöttl, Gerald; Wick, Georg; Mann, Klaus (1993): Variants of human chorionic gonadotropin from pregnant women and tumor patients recognized by monoclonal antibodies. In: The Journal of Clinical Endocrinology & Metabolism, Vol. 77, No. 2: pp. 347-351 [PDF, 1MB]