Improved clinical outcome using polytetraethylene-coated stents for TIPS: results of a randomized study. - Bureau,C.; Garcia-Pagan,J.C.; Otal,P.; Pomier-Layrargues,G.; Chabbert,V.; Cortez,C.; Perreult,P.; Peron,J.M.; Abraldes,J.G.; Bouchard,L.; Bilbao,J.I.; Rousseau,H.; et al. (Gastroenterology, 2004)