Sheffield, Brandon S HER2/neu testing in gastric cancer by immunohistochemistry: assessment of interlaboratory variation. [electronic resource] - Archives of pathology & laboratory medicine Nov 2014 - 1495-502 p. digital Publication Type: Comparative Study; Evaluation Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 1543-2165 Standard No.: 10.5858/arpa.2013-0604-OA doi Subjects--Topical Terms: AdultAgedAged, 80 and overAntibodies, Monoclonal, Humanized--therapeutic useFemaleGenes, erbB-2HumansImmunohistochemistry--methodsIn Situ Hybridization--methodsLaboratoriesMaleMiddle AgedMolecular Targeted TherapyObserver VariationReceptor, ErbB-2--antagonists & inhibitorsStomach Neoplasms--geneticsTissue Array Analysis--methodsTrastuzumab