Figure 1. Quantitative assessment of residual thrombus. Thrombus was extracted from the excised inferior vena cava. Animals that received low-molecular-weight heparin (LMWH) combined with sodium N-[10-(2-hydroxybenzoyl)amino] decanoate (SNAD) displayed significantly less thrombus than groups 1, 2, and 3. Error bars = SEM.