Breast Cancer Research

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Determination of HER2 status using both serum HER2 levels and circulating tumor cells in patients with recurrent breast cancer whose primary tumor was HER2 negative or of unknown HER2 status

Tanja Fehm*, Sven Becker, Silke Duerr-Stoerzer, Karl Sotlar, Volkmar Mueller, Diethelm Wallwiener, Nancy Lane, Erich Solomayer and Jonathan Uhr

Breast Cancer Research 2007, 9:R74 doi:10.1186/bcr1783

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