Kaplan–Meier curves for patients with osteosarcoma. Overall survival (A) and disease-free survival (B) curves for two groups defined by low and high expression of SOX9 in patients with osteosarcoma. The patients with high SOX9 expression had a significantly worse 5-year overall survival and disease-free survival rates than those with low SOX9 staining (both P < 0.001).
Zhu et al. Diagnostic Pathology 2013 8:183 doi:10.1186/1746-1596-8-183