| CTC | Circulating Tumor Cell |
| EpCAM | Epithelial Cell Adhesion Molecule |
| FDA | Food and Drug Administration |
| EMT | Epithelial to Mesenchymal Transition |
| MBC | Metastatic Breast Cancer |
| PI3K | Phosphatidylinositol 3-Kinase |
| PIK3CA | Phosphatidylinositol 3-Kinase Catalytic subunit Alpha |
| WGA | Whole Genome Amplification |
| WT | Wild-type |
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