ACUTE VASCULAR REJECTION OF XENOGRAFTS: ROLES OF NATURAL AND ELICITED XENOREACTIVE ANTIBODIES IN ACTIVATION OF VASCULAR ENDOTHELIAL CELLS AND INDUCTION OF PROCOAGULANT ACTIVITYBernd Gollackner, Simon C. Robson, Elżbieta Kaczmarek et al.|Transplantation|2004Cited by 98