Lancet Gastroenterology & Hepatology, 4, 3, pp. 199-207 The Lancet Gastroenterology and Hepatology, 4(3), 199-207. Elsevier Ltd Lancet Gastroenterology & Hepatology, 4, 199-207 lancet. Gastroenterology & hepatology, 4(3), 199-207. Elsevier Limited The Lancet Gastroenterology and Hepatology, 4(3), 199. Elsevier Limited van Hilst, J, de Rooij, T, Bosscha, K, Brinkman, D J, van Dieren, S, Dijkgraaf, M G, Gerhards, M F, de Hingh, I H, Karsten, T M, Lips, D J, Luyer, M D, Busch, O R, Festen, S, Besselink, M G, Marsman, H A, van Gulik, T M, Wicherts, D A, Eshuis, W J, Stibbe, L A, Nieveen van Dijkum, E J M, van Hooft, J E, Fockens, P, van Laarhoven, H W, Wilmink, J W, van de Vijver, M J, Bijlsma, M F, Verheij, J, Nio, C Y, van Lienden, K P, van Tienhoven, G, Schoorlemmer, A, Creemers, G-J, van Eijck, C H J, Groot Koerkamp, B, Bruno, M J, Eskens, F, Nuyttens, J J, Pek, C, van der Schelling, G P, Seerden, T C, de Groot, J W, Swijnenburg, R J, van den Boezem, P B, van Geenen, E J M, Scheepers, J J G, Kazemier, G, Zonderhuis, B, Daams, F, Meijerink, M R, Rombouts, S, Dutch Pancreatic Cancer Group, Mungroop, T H, Vissers, F & Korrel, M 2019, ' Laparoscopic versus open pancreatoduodenectomy for pancreatic or periampullary tumours (LEOPARD-2): a multicentre, patient-blinded, randomised controlled phase 2/3 trial ', The Lancet Gastroenterology and Hepatology, vol. 4, no. 3, pp. 199-207 . https://doi.org/10.1016/S2468-1253(19)30004-4 The Lancet Gastroenterology and Hepatology, 4(3), 199-207. Elsevier Ltd. The Lancet Gastroenterology and Hepatology, 4(3), 199-207. HANLEY & BELFUS-ELSEVIER INC