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CONSORT flow chart of the ABC Tamoxifen Late Relapse Study in which the number of samples with data available for ER and HER2 by qRT-PCR, IHC, and FISH (for HER2 only) are shown. ER, estrogen receptor; FISH, fluorescence in situ hybridization; HER2, human epidermal growth factor receptor 2; IHC, immunohistochemistry; qRT-PCR, quantitative reverse-transcription polymerase chain reaction.
