Targeting properties of 124I-labeled anti-HER2 ZHER2:342 affibody molecule and anti-HER2 therapeutic monoclonal antibody trastuzumab were compared in mice bearing gastric cancer NCI-N87 xenografts with high HER2 expression (Orlova et al. 2009) (Fig. 3). This evidence concerns the gene ERBB2 and gastric cancer.