Protocol for the Examination of Specimens From Patients ...

For the CK7 negative group, no tumor cells yielded positive IHC staining results for CK7. For the CK7 positive group, diffuse or focal CK7 positive tumor cells were present in tumor tissue. No patients were treated prior to the radical resection of CRC. All patients were histologically diagnosed as having CRC based on the results of IHC staining. ................
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