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Are circulating tumor cells predictive of overall survival?

Comparison of circulating tumor cell numbers before and after treatment is predictive for overall survival in patients with metastatic castration-resistant prostate cancer; this comparison is more helpful than prostate-specific antigen detection, according to a recent study.

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Correspondence to Klaus Pantel.

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The authors declare no competing financial interests.

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Pantel, K., Riethdorf, S. Are circulating tumor cells predictive of overall survival?. Nat Rev Clin Oncol 6, 190–191 (2009).

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