ERCC1 and osteosarcoma: We found that ERCC1 rs3212986 (8092 C>A) gene polymorphism was not associated with overall survival of osteosarcoma (A allele: OR = 0.83, 95% CI: 0.67–1.04, P = 0.11; AA genotype: OR = 0.67, 95% CI: 0.40–1.12, P = 0.13; CC genotype: OR = 1.19, 95% CI: 0.89–1.59, P = 0.23; Figure 2).