Prothrombin index slope is an early prognostic marker in patients with severe acute liver diseases. Issue 7 (24th October 2011) - Nalpas, Bertrand; Francoz, Claire; Ichaï, Philippe; Jamot, Laure; Faivre, Jamila; Lemoinne, Sara; Samuel, Didier; Durand, François; Bernuau, Jacques; Bréchot, Christian; Amouyal, Paul; Amouyal, Gilles