A quantitative magnetic resonance cholangiopancreatography metric of intrahepatic biliary dilatation severity detects high-risk primary sclerosing cholangitis by Selvaraj, EA, Ba-Ssalamah, A, Poetter-Lang, S, Ridgway, GR, Brady, JM, Collier, J, Culver, EL, Bailey, A, Pavlides, M