VEGFA and osteosarcoma: The pooled OR indicated that the VEGF +936C/T polymorphism was associated with increased risk of osteosarcoma in a Chinese population (T vs. C: OR = 1.26, 95% CI = 1.12–1.42, P < 0.01; TT vs. CC: OR = 1.70, 95% CI = 1.29–2.24, P < 0.01; CT + TT vs. CC: OR = 1.23, 95% CI = 1.06–1.44, P < 0.01; TT vs. CC + CT: OR = 1.61, 95% CI = 1.23–2.10, P < 0.01).