Guder, Wiebke ; Hardes, Jendrik ; Gosheger, Georg ; Henrichs, Marcel-Philipp ; Nottrott, Markus ; Streitbürger, Arne: Analysis of surgical and oncological Outcome in internal and external Hemipelvectomy in 34 Patients above the Age of 65 Years at a mean Follow-up of 56 [...]