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The characteristics of the serum carcinoembryonic antigen and carbohydrate antigen 19-9 levels in gastric cancer cases
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文摘
PurposeAlthough carcinoembryonic antigen (CEA) and carbohydrate antigen (CA) 19-9 are the most commonly used tumor markers in gastric cancer, the differences in the characteristics of these two markers remain unclear, because most previous studies have included many patients who were positive for both markers.

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