Possible role of circulating tumor cells in early detection of lung cancer.

J Thorac Dis · 2020 · PMC7399415 · PMID 32802464

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showed a trendno p-value reported

noted that patients with CTC clusters in the preoperative peripheral blood showed a trend toward lower PFS than those patients without clusters.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.