Ranck MC, Golden DW, Corbin KS, Hasselle MD, Liauw SL, Stadler WM, Hahn OM, Weichselbaum RR, Salama JK. Stereotactic body radiotherapy for the treatment of oligometastatic renal cell carcinoma. Am J Clin Oncol. 2013 Dec; 36(6):589-95.