Systematic analysis of parameters predicting pathological axillary status (ypN0 vs. ypN+) in patients with breast cancer converting from cN+ to ycN0 through primary systemic therapy (PST)

C. Liedtke; Hans-Christian Kolberg; L. Kerschke; D. Görlich; I. Bauerfeind; T. Fehm; B. Fleige; G. Helms; A. Lebeau; A. Stäbler; S. Schmatloch; M. Hausschild; L. Schwentner; Gunter von Minckwitz; S. Loibl; M. Untch; T. Kühn