Evaluation of Stereotactic Radiotherapy of the Resection Cavity After Surgery of Brain Metastases Compared to Postoperative Whole-Brain Radiotherapy (ESTRON)—A Single-Center Prospective Randomized Trial. Issue 3 (1st September 2018) - El Shafie, Rami A; Paul, Angela; Bernhardt, Denise; Hauswald, Henrik; Welzel, Thomas; Sprave, Tanja; Hommertgen, Adriane; Krisam, Johannes; Schmitt, Daniela; Klüter, Sebastian; Schubert, Kai; Klose, Christina; et al.