Subscribe to ChaRactErization of patients following aCute venous thrOmboembolism (VTE) and assessment of safety and effectiveness of dabigatran etexilate (DE) in the tReatment and secondarY prevention of acute deep vein thrombosis (DVT) and pulmonary embolism (PE) in comparison to vitamin K antagonist (VKA) in routine clinical practice - RE-COVERY DVT/PE