Comment on: “The effects of supra-normal protein C levels on markers of coagulation, fibrinolysis and inflammation in a human model of endotoxemia” by Spiel et al. - Messaris, Evangelos; Memos, Nikolaos; Frantzeskaki, Frantzeska; Economou, Venetia; Betrosian, Alex (Thrombosis and Haemostasis, 2006)