label: Anti-beta 2 glycoprotein I antibody positivity
label_lc: anti-beta 2 glycoprotein i antibody positivity
description: "Presence of antibodies against beta 2 glycoprotein I in the circulation. Beta-2 glycoprotein I (beta2GPI) is the principal target of autoantibodies in the antiphospholipid syndrome (APS)."