TF and autoimmune polyendocrinopathy: Consistent with our present results, they found low EV-TF activity in APS patients (median 0.13 pg/mL [IQR 0.10–0.17]), but EV-TF activity was significantly higher than in asymptomatic individuals with positive antiphospholipid antibodies (median 0.09 pg/mL [IQR 0.05–0.14]).