Follow‐up magnetic resonance imaging/3D‐magnetic resonance cholangiopancreatography in patients with primary sclerosing cholangitis: challenging for experts to interpret. - Zenouzi, R.; Liwinski, T.; Yamamura, J.; Weiler‐Normann, C.; Sebode, M.; Keller, S.; Lohse, A. W.; Schramm, C.; the International PSC Study Group (IPSCSG) (Alimentary Pharmacology & Therapeutics, 2018)