"Treatment of Acute Venous Thromboembolism with Dabigatran or Warfarin and Pooled Analysis"   
Circ
http://circ.ahajournals.org/content/early/2013/12/10/CIRCULATIONAHA.113.004450.abstract 
"Conclusions—Dabigatran has similar effect on VTE recurrence and a lower risk of bleeding compared to warfarin for the treatment of acute VTE."