Table 1. Comparative analysis of chromogenic in situ hybridization (CISH), immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) results for breast cancer samples.
Na = data not available to calculate the percentage; (-) = method not performed. aDifferent antibodies were used. bData from different laboratories. dNo IHC 2+ cases. eTwo different groups of samples or different sites from the same tumor. fNo IHC 0-1+ cases. gCISH was performed on cytology samples.