
Association of PD-L1 Expression with Lymph Node Metastasis and Clinical Stage in Ampulla of Vater Cancer: An ...
Introduction Ampulla of Vater cancer is one of the cancers that is grouped in periampullary cancer. Periampullary cancer itself is a general term used to grouping cancer originating from the proximal part of the pancreas, distal part of the bile duct, and …