Breast Cancer in Women: Evaluation of Benign and Malignant Axillary Lymph Nodes with Contrast-Enhanced Ultrasound - Steppan, I.; Reimer, D.; Müller-Holzner, E.; Marth, C.; Aigner, F.; Frauscher, F.; Frede, T.; Zeimet, A. G. (Ultraschall in der Medizin - European Journal of Ultrasound, 2010)