Fig. 2From: Prognostic implications of the phosphatidylinositol 3-kinase/Akt signaling pathway in oral squamous cell carcinoma: overexpression of p-mTOR indicates an adverse prognosisKaplan –Meier curve for the disease free survival rates in relation to tumor histological grade. The difference between the patients with SCC II e III (green line) and patients with oral SCC I (blue line) is statiscally significant (long-rank test, p = 0.001)Back to article page