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a) Fluorescence images of CTCs from breast cancer patient sample. Nucleated cells (blue) staining positive for cytokeratin 7/8 (red) and negative for the white blood cell marker CD45 (green) were enumerated as CTCs. Scale bar = 10 µm. b) CTC enumeration results from 10 breast cancer patients and 3 pancreatic cancer patients. c) Fluorescence in situ hybridization (FISH) image of CTCs of breast cancer patient sample Br10. HER2(green)/centromere 17 probe(red).
