TY - CONF AU - González Villarroel, Paula PY - 2013 SN - 0732-183X UR - http://hdl.handle.net/20.500.11940/2377 LA - eng TI - Long-term responders to first-line bevacizumab-based therapy among patients (pts) with HER2-negative metastatic breast cancer (MBC): Retrospective results of an ambispective observational study VL - 31 ER -