Published in Medical Letter on the CDC and FDA, January 3rd, 2010
"However, to date, none of the studies carried out with the most commonly used system of CTC determination (the CellSearch System, approved by the US Food and Drug Administration) has examined the intra-patient variation in CTC numbers, a variation that could impact on prognosis assessment. Experimental design: To evaluate possible circadian variations in the number of CTCs in...
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