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A somatic mutation of the PIK3CA (phosphatidylinositol 3-kinase catalytic subunit) gene has been found in human cancer patients. However, this mutation has not yet been extensively studied in esophageal squamous cell carcinomas.We analyzed a mutation of the PIK3CA gene in 88 Japanese cases of esophageal squamous cell carcinomas that had all undergone surgery at the Department of Surgery II, Nagoya...
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