1. M�ller-Werdan U, Klein D, Zander M, Werdan K, Hammer C: Beating neonatal rat cardiomyocytes as a model to study the role of xenoreactive natural antibodies in xenotransplantation. Transplantation 58: 1403?1409, 1994
2. M�ller-Werdan U, Koidl B, Autenrieth A, Klein D, Zander M, Werdan K, Hammer C: Preformed natural antibodies: their impact on contractile activity of cardiomyocytes. Trans Proc 27: 2109?2111, 1995
3. Autenrieth AE, M�ller-Werdan U, Koidl B, Werdan K, Hammer C: Different action of xenoreactive natural (PNAB) and immune antibodies (IAB) on beating cardiomyocytes (BCM). Trans Proc, in press
4. Hammer C: Xenotransplantation-is it just around the corner? Nephrol Dial Transplant 9: 1724?1729, 1994
5. Hammer C, M�ller U, Werdan K: Beating cardiomyocytes for detection of xenogeneic rejection. Eur Surg Res 24: 316?317, 1992