Frequency of factor V, prothrombin and methylenetetrahydrofolate reductase gene variants in preeclampsia. - D'Elia,A.; Driul,L.; Giacomello,R.; Coalone,R.; Fabbro,D.; Di Leonardo,C.; Florio,P.; Petraglia,F.; Marchesoni,D.; Damante,G. (Gynecol Obstet Invest, 2002)