Perbandingan skor wells, D-dimer dan kombinasi skor wells dan D-dimer dengan Venous Duplex Ultrasonography (VDUS) dalam penegakan diagnosis Deep Vein Thrombosis (DVT) akut ekstremitas bawah = Comparison of wells score, D-dimer and combination of wells score and D-dimer with Venous Duplex Ultrasonography (VDUS) in diagnosis of acute Deep Vein Thrombosis (DVT) in lower extremity / Andy Lesmana