Lymph Node Ratio Is a Reliable Prognostic Marker after Neoadjuvant Therapy and Pancreaticoduodenectomy for Pancreatic Cancer, but Does Not Predict the Utility of Adjuvant Therapy. (2022) - Adams, A.; Carpenter, E.; Valdera, F.; O'Shea, A.; McCarthy, P.; Bader, J.; Clifton, G.; Peoples, G.; Nelson, D.; Vreeland, T.