Of the 33 men and 45 women with PE and concurrent cancer (Fig. 1), hospital based coagulation measures (Factor V Leiden, homocysteine, lupus anticoagulant, anticardiolipin antibody IgG and IgM, proteins C, S, and antithrombin III) were obtained in 17 (9 men, 8 women, Tables 4 and 5). Here, F5 is linked to cancer.