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Langer, I; Guller, U; Hsu-Schmitz, S F; Ladewig, A; Viehl, C T; Moch, H; Wight, E; Harder, F; Oertli, D; Zuber, M (2009). Sentinel lymph node biopsy is associated with improved survival compared to level I & II axillary lymph node dissection in node negative breast cancer patients. European journal of surgical oncology EJSO, 35(8), pp. 805-13. Amsterdam: Elsevier 10.1016/j.ejso.2008.09.006
