Andratschke, N. ; Alheid, H. ; Allgäuer, M. ; Becker, G. ; Blanck, O. ; Boda-Heggemann, J. ; Brunner, T. ; Duma, M. ; Gerum, S. ; Guckenberger, M. ; Hildebrandt, G. ; Klement, R. J. ; Lewitzki, V. ; Ostheimer, C. ; Papachristofilou, A. ; Petersen, C. ; Schneider, T. ; Semrau, R. ; Wachter, S. ; Habermehl, D. (2018) The SBRT database initiative of the German Society for Radiation Oncology (DEGRO): patterns of care and outcome analysis of stereotactic body radiotherapy (SBRT) for liver oligometastases in 474 patients with 623 metastases. BMC Cancer, 18 (283). pp. 1-11. ISSN 1471-2407