p53 tumor suppressor factor, plasminogen activator inhibitor, and vascular endothelial growth factor gene polymorphisms among couples experiencing recurrent implantation failure

¹ University of Southern California, Los Angeles, CA, USA; ²Andrology Laboratory Services, Chicago, IL, USA; ³Rinehart Center for Reproductive Medicine, Evanston, IL, USA; ⁴CARI Institute for Reproductive Medicine, Chicago, IL, USA