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Grimm, D. and Bauer, J. and Hofstädter, Ferdinand and Riegger, G. A. and Kromer, E. P. (1997) Characteristics of multicellular spheroids formed by primary cultures of human thyroid tumor cells. Thyroid 7 (6), pp. 859-865.
Krämer, Bernhard K. and Ritthaler, T. and Ackermann, M. and Holmer, S. and Schricker, K. and Riegger, G. A. and Kurtz, Armin (1994) Endothelium-mediated regulation of renin secretion. Kidney international 46 (6), pp. 1577-1579.
Krämer, Bernhard K. and Ackermann, M. and Kohler, S. M. and Riegger, G. A. (1994) Role of endothelin in hypertension. The Clinical investigator 72 (2), pp. 88-93.