摘要 |
A method which can objectively determine to what extent a cancer cell has metastasized to a lymph node, the method being a method for determining a size of a metastatic focus, including a step of quantitating a tumor marker mRNA in an assay sample prepared from a lymph node suspected of metastasis of a cancer cell, and a step of obtaining a size of a metastatic focus in the lymph node based on the quantitation result of the mRNA.
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