showed a trendP = 0.054
According to the Kaplan-Meier analysis shown in Figure 3 , the ESCC patients with PIK3CA overexpression showed a trend towards unfavorable overall survival (P = 0.054).
According to the Kaplan-Meier analysis shown in Figure 3 , the ESCC patients with PIK3CA overexpression showed a trend towards unfavorable overall survival (P = 0.054).