Wolff Wolff AC AC Hammond Hammond ME ME Schwartz Schwartz JN JN American Society of Clinical Oncology/College of American Pathologists guideline recommendations for human epidermal growth factor receptor 2 testing in breast cancer American Society of Clinical Oncology/College of American Pathologists guideline recommendations for human epidermal growth factor receptor 2 testing in breast cancer J Clin Oncol J Clin Oncol 2007 2007 25 25 1 1 118 118 145 145 10.1200/JCO.2006.09.2775 10.1200/JCO.2006.09.2775 17159189 17159189. This evidence concerns the gene ERBB2 and breast cancer.