SOX9 is a survival factor in chondrosarcoma and contributes to polyploidy, drug resistance and tumor malignancy - Sabine, Stöckl; Georg, L; Philipp, S; Ferdinand, W; Melanie, B; Richard, B; Axel, H; Susanne, Grässel (Zeitschrift für Orthopädie und Unfallchirurgie, 2020)