Determination of radiotherapeutic target zones for thoracic esophageal squamous cell cancer with lower cervical lymph node metastasis according to CT-images.

Oncotarget · 2016 · PMC5094969 · PMID 27147581

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an increasing trendno p-value reported

And rate of lymph node metastasis to the above two zones from middle thoracic section was on an increasing trend with the progress of T stage.

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