Individualized early death and long-term survival prediction after stereotactic radiosurgery for brain metastases of non-small cell lung cancer: Two externally validated nomograms. - Zindler, Jaap D.; Jochems, Arthur; Lagerwaard, Frank J.; Beumer, Rosemarijne; Troost, Esther G.C.; Eekers, Daniëlle B.P.; Compter, Inge; van der Toorn, Peter-Paul; Essers, Marion; Oei, Bing; Hurkmans, Coen W.; Bruynzeel, Anna M.E.; et al. (Radiotherapy & Oncology, 2017)