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Lipp RW, Hammer HF, Passath A, Dobnig H, Ramschak-Schwarzer S, Stiegler C, Leb G, Krejs GJ.Lipp RW, et al. Among authors: krejs gj.Acta Med Austriaca. 1993;20(1-2):42-4.Acta Med Austriaca. 1993.PMID: 8475679German.