Stereotactic radiosurgery for brain metastases from human epidermal receptor 2 positive breast Cancer: an international, multi-center study.

Pikis S, Mantziaris G, Protopapa M, Tos SM, Kowalchuk RO, Ross RB, Rusthoven CG, Tripathi M, Langlois AM, Mathieu D, Lee CC, Yang HC, Peker S, Samanci Y, Zhang MY, Braunstein SE, Wei Z, Niranjan A, Lunsford DL, Sheehan J