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Prolongation of clotting time as a function of concentration of sulfated benzofuran monomers and dimers in either activated partial thromboplastin time assay (A) or prothrombin time assay (B). Solid lines are trend lines, and not non-linear regressional fits. Error bars in the range of symbol size have been omitted. APTT and PT assays were performed as described in the experimental section.
