FASLG and antiphospholipid syndrome: Antiphospholipid antibody syndrome (APLS) is a systemic, autoantibody‐mediated disease characterized by venous and/or arterial thrombosis, obstetric complications [1], and persistently detectable serum titers of antiphospholipid (aPL) antibodies (specifically anti‐β2 glycoprotein 1, anticardiolipin, and/or lupus anticoagulant antibodies) [2, 3, 4].