Endoscopic sphincterotomy to prevent post-ERCP pancreatitis after self-expandable metal stent placement for distal malignant biliary obstruction (SPHINX): a multicentre, randomised... by Onnekink, AM, Gorris, M, Bekkali, NL, Bos, P, Didden, P, Dominguez-Muñoz, JE, Friederich, P, van Halsema, EE, Hazen, WL, van Huijgevoort, NC, Inderson, A, Jacobs, MA, Koornstra, JJ, Kuiken, S, Scheffer, BC, Sloterdijk, H, van Soest, EJ, Venneman, NG, Voermans, RP, de Wijkerslooth, TR, Wonders, J, Zoutendijk, R, Zweers, SJ, Fockens, P