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| CA-19-9 Antigen Antigen CA-19-9 | Gastrointestinal Cancer Antigen | CA 19-9 Antigen | CA 19.9 Antigen | Antigen CA 19 9 | Antigen, CA 19-9 | Antigen, CA 19.9 | Antigen, CA-19-9 | Antigen, Gastrointestinal Cancer | CA 19 9 Antigen | CA-19-9, Antigen Sialylated Lewis blood group carbohydrate antigen found in many adenocarcinomas of the digestive tract, especially pancreatic tumors. |