TF and Arterial thrombosis: No difference in EV-TF activity in APS pts. vs. HBDs.No difference in EV-TF activity in single, double, or triple aPL + pts.No correlation between different aPL and EV-TF activity.No difference in EV-TF activity in aPL + pts. with arterial thrombosis vs. venous thrombosis vs. combination of both.No difference in EV-TF activity and the number of thromboses.