Magnetic resonance cholangiography and biochemical predictive criteria of response to endoscopic treatment of severe strictures in patients with primary sclerosing Cholangitis. Issue 3 (October 2018) - Cazzagon, N.; Chazouilleres, O.; Corpechot, C.; El Mouhadi, S.; Chambenois, E.; Desaint, B.; Lemoinne, S.; Chaput, U.; Arrivé, L.