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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Matched-pair analysis of CTCs quantified with the CellSearch®, dual fluoro-EPISPOTPSA/FGF2 or CellCollector® assay before and at least three months after radiotherapy start.