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Lankiewicz S, Rother E, Zimmermann S, Hollmann C, Korangy F, Greten TF Tumour-associated transcripts and EGFR deletion variants in colorectal cancer in primary tumour, metastases and circulating tumour cells. Cellular Oncology 30: 463-471

Tewes M, Aktas B, Welt A, Mueller S, Hauch S, Kimmig R, Kasimir-Bauer S (2008) Molecular profiling and predictive value of circulating tumor cells in patients with metastatic breast cancer: an option for monitoring response to breast cancer related therapies. Breast Cancer Research and Treatment

Fehm T, Becker S, Duerr-Stoerzer S, Sotlar K, Mueller V, Wallwiener D, Lane N, Solomayer E, Uhr J (2007). 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. Breast Cancer Research 9: R74

Zieglschmid V, Hollmann C, Mannel J, Albert W, Jaeschke-Melli S, Eckstein Birte, Hillemann T, Greten TF, Gross E and Böcher O (2007). Tumor associated Gene Expression in Disseminated Tumor Cells Correlates with Disease Progression and Tumor Stage in Colorectal Cancer. Anticancer Research 27: 1823-1832

Zieglschmid V, Hollmann C, Gutierrez B, Krehan A, Kaul S and Böcher O (2007). Heterogeneous Expression of Tumor associated Genes in Disseminated Breast Cancer Cells. Anticancer Research 27: 1769-1776

Hauch S, Zimmermann S, Lankiewicz S, Zieglschmid V, Böcher O and Albert WH (2007). The Clinical Significance of Circulating Tumour Cells in Breast Cancer Colorectal Cancer Patients. Anitcancer Research 27: 1337-1342

Lankiewicz S, Gutierrez B and Böcher O (2006). Quantitative Real -Time RT - PCR of Disseminated Tumor Cells in Combination With Immunomagnetic Cell Enrichment. Molecular Biotechnology, 34: 15- 2

Zieglschmid V, Hollmann C, Gutierrez B, Albert W, Strothoff D, Gross E, and Böcher O (2005). Combination of immunomagnetic enrichment with multiplex RT-PCR analysis for the detection of disseminated tumor cells. Anticancer Res., 25: 1803-1810.

Zieglschmid V, Hollmann C, and Böcher O (2005). Detection of disseminated tumor cells in peripheral blood. Crit. Rev. Clin. Lab. Sci., 42 (2): 155-196.

Demel U, Tilz GP, Földes-Papp Z, Gutierrez B, Albert WH, and Böcher O (2004). Detection of tumor cells in the peripheral blood of patients with breast cancer: development of a new sensitivity and specific immunomolecular assay. J. Exp. Clin. Canc. Res., 23 (3): 465-468.

Gutierrez B, Zieglschmid V, Hollmann C, Albert WH, Waschütza S, Mueller O, and Böcher O (2003). Sensitive detection of tumor cells in peripheral blood. BIOforum Europe 05/2003: 252-254.

Gutierrez B, Zieglschmid V, Hollmann C, Koschel A, Albert WH, Waschütza S, and Böcher O (2003). Sensitive detection of tumor cells in peripheral blood of carcinoma patients by a reverse transcription PCR method. Agilent Application Note.