Xu, Chen Poor efficacy response to trastuzumab therapy in advanced gastric cancer with homogeneous HER2 positive and non-intestinal type. [electronic resource] - Oncotarget May 2017 - 33185-33196 p. digital Publication Type: Journal Article ISSN: 1949-2553 Standard No.: 10.18632/oncotarget.16567 doi Subjects--Topical Terms: AdultAgedAged, 80 and overAntineoplastic Agents, Immunological--administration & dosageBiomarkers, TumorFemaleHumansImmunohistochemistryMaleMiddle AgedNeoplasm GradingNeoplasm StagingReceptor, ErbB-2--metabolismStomach Neoplasms--drug therapySurvival AnalysisTrastuzumab--administration & dosageTreatment FailureTreatment Outcome