Diz-Kucukkaya R, Inanc M, Afshar-Kharghan V, Zhang QE, Lopez JA, Pekcelen Y. P-selectin glycoprotein ligand-1 VNTR polymorphisms and risk of thrombosis in the antiphospholipid syndrome. Annals of the Rheumatic Diseases. 2007 Oct 01;66(10):1378–80. doi: 10.1136/ard.2007.075945.