Differences in Lymph Node Metastases Patterns Among Non-pancreatic Periampullary Cancers and Histologic Subtypes: An International Multicenter Retrospective Cohort Study and System... Autor Uijterwijk, BA, Lemmers, DH, Fusai, GK, Zerbi, A, Salvia, R, Sparrelid, E, White, S, Björnsson, B, Mavroeidis, VK, Roberts, KJ, Mazzola, M, Cabús, SS, Soonawalla, Z, Korkolis, D, Serradilla, M, Pessaux, P, Luyer, M, Mowbray, N, Ielpo, B, Mazzotta, A, Kleeff, J, Boggi, U, Muñoz, MAS, Goh, BKP