Among the 17 remaining, 10 patients received fondaparinux (in most cases, for LMWH-induced thrombocytopenia or previous adverse reactions to LMWH) and seven patients were given dose-adjusted warfarin sodium by standardized prescriptive protocol according to the results of laboratory monitoring of the prothrombin time and according to a predefined warfarin nomogram. Here, F2 is linked to Thrombocytopenia.