Some years before, another ERBB2-avid peptide, discovered from phage display, was evaluated in human breast carcinoma cells and in breast carcinoma-xenografted mice for its potential to be used as a tumor-imaging agent and as a vehicle for specific delivery of radionuclide or cytotoxic agents for tumors overexpressing ERBB2 [109]. Here, ERBB2 is linked to neoplasm.