Comparison between long and short-term venous patencies after pancreatoduodenectomy with portal/superior mesenteric vein resection stratified by reconstruction type. (2021) - Chan, K.S.; Koh, Y.X.; Tan, E.K.; Teo, J.Y.; Lee, S.Y.; Chan, C.Y.; Chung, A.Y.F.; Goh, B.K.P.