R. D. Ridder

Urgent endoscopic retrograde cholangiopancreatography with sphincterotomy versus conservative treatment in predicted severe acute gallstone pancreatitis (APEC): a multicentre randomised controlled trial

F. Vleggaar, P. Fockens, R. V. D. van der Hulst, 2020, The Lancet.

Endoscopic versus percutaneous biliary drainage in patients with resectable perihilar cholangiocarcinoma: a multicentre, randomised controlled trial.

D. Gouma, C. Dejong, P. Fockens, 2018, The lancet. Gastroenterology & hepatology.