The anti-beta2-glycoprotein I activity in human anti-phospholipid syndrome sera is due to monoreactive low-affinity autoantibodies directed to epitopes located on native beta2-glycoprotein I and preserved during species’ evolution - Tincani, A; Spatola, L; Prati, E; Allegri, F; Ferremi, P; Cattaneo, R; Meroni, P; Balestrieri, G (J Immunol, 1996)