Gene amplification and protein overexpression of HER-2/neu in human extrahepatic cholangiocarcinoma as detected by chromogenic in situ hybridization and immunohistochemistry: its prognostic implication in node-positive patients - Kim, H J; Yoo, T W; Park, D I (Annals of oncology: official journal of the European Society for Medical Oncology/ESMO, 2007)
et al.