Effect of hydrogen peroxide versus normal saline on fibrin clot volume: graph shows percentage of initial fibrin clot volume over time (results show mean values). Below this graph, macroscopic appearance of fibrin clots agitated in NaCl control (A-D) and 10% H2O2 (E-H) at 0 (A, E), 30 (B, F), 60 (C, G) and 90 (D, H) minutes can be seen. At the bottom, data are plotted in a bar graph (showing mean ± standard error mean) showing statistical significances.