High concordance between HercepTest immunohistochemistry and ERBB2 fluorescence in situ hybridization before and after implementation of American Society of Clinical Oncology/College of American Pathology 2007 guidelines

Human epidermal growth factor receptor 2 ( HER2, ERBB2 ) is an important critical predictive marker in patients with invasive breast cancer. It is thus imperative to ensure accuracy and precision in HER2 and ERBB2 testing. In 2007, the American Society of Clinical Oncology and College of American Pa...

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