[The differential diagnosis between undifferentiated carcinoma and malignant lymphoma of the gastrointestinal tract by the double PAP method].
D002272:Carcinoembryonic Antigen / Q000032:analysis; D002277:Carcinoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis*; D006801:Humans; D007124:Immunoenzyme Techniques; D008223:Lymphoma / Q000175:diagnosis*; D013274:Stomach Neoplasms / Q000175:diagnosis*
D002272:Carcinoembryonic Antigen