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Correlations between CEA and CA19-9 levels in: (A) all patients (P=0.025); (B) SU group (P=0.032); (C) SE group (P=0.311); (D) DI group (P=0.633); (E) P1 group (P=0.084); (F) P2 group (P<0.001). CA19-9 = carbohydrate antigen 19-9; CEA = carcinoembryonic antigen; SU = serosa-unexposed; SE = serosa-exposed; DI = direct invasion; P1 = localized seeding; P2 = extensive seeding.
