Figure 1
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1749-8090-8-154/MediaObjects/13019_2012_Article_800_Fig1_HTML.jpg)
ETP on T1 in PRP and PPP in both groups. Boxplot showing median, interquartile range and range of ETP measured before heparinisation in patients of group 1 and 2 on x-axis. P-value of comparison of ETP in PRP between the groups is <0.001, p-value of comparison of ETP in PPP between the groups is 0.004; ETP=endogenous thrombin potential; PPP=platelet poor plasma; PRP=platelet rich plasma.