Cluster study of 383 aPL+ pts showed 4 clusters: Cluster 1 (138): w/ SLE & non-criteria Sxs Cluster 2 (112): pts w/ CV risks Cluster 3 (83): females w/ OB morbidity (BEST outcome) Cluster 4 (50): lupus anticoagulant (+) (high freq of arterial thrombosis) https://t.co/HGRTceplsn https://t.co/ZDdwhCmj5r