Laparoscopic versus open pancreatoduodenectomy for pancreatic or periampullary tumours (LEOPARD-2): a multicentre, patient-blinded, randomised controlled phase 2/3 trialJony van Hilst, Ferry A.L.M. Eskens, David J. Brinkman et al.|The Lancet. Gastroenterology & hepatology|2019Cited by 597