P-glycoprotein Expression in Several Common Malignancies
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Abstract
Objective To investigate frequency of P-glycoprotein expression in several common malignancies. Methods Two hundred and sixty three surgically resected tumor specimens confirmed pathologically to be malignant from preoperatively untreated cancer patients were studied. Expression of P-glycoprotein was examined by S-P immunohistochemistry. Results The frequency of P-glycoprotein expression was 64.7% for cancer of the esophagus, 88.0% for cancer of the stomach, 85.7% for the colorectal cancer, 61.3% for ...
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