Department of Pathology,The Johns Hopkins Hospital,Baltimore,MD 21201,United States;
Department of Biostatistics,Vanderbilt University Medical Center,Nashville,TN 37215,United States;
Department of Pathology,Vanderbilt University Medical Center,Nashville,TN 37215,United States;
Department of Surgery,Vanderbilt University Medical Center,Nashville,TN 37215,United States;
Department of Radiation Oncology,Vanderbilt University Medical Center,Nashville,TN 37215,United States;
Pancreatic; adenocarcinoma; Lymph; node; ratio; Carbohydrate; antigen; 19-9; Recurrence-free; survival; Overall; survival;