MKI67 and neoplasm: By combination of Ki-67 and tumor grade as G-Ki67, we classified tumor into 4 categories as G1/2 and Ki-67 < 40%, G1/2 and Ki-67 ≥ 40%, G3/4 and Ki-67 < 40%, and G3/4 and Ki-67 ≥ 40% and the survival curve is shown in Fig. 3B. And because the curves for G3/4 and Ki-67 < 40%, and G3/4 and Ki-67 ≥ 40% were quite difficult to distinguish from each other, those 2 categories were merged as one category.