Figure 2. The prognostic value of the ALDH family. (A) Kaplan–Meier survival curves by OS. (B) Kaplan–Meier survival curves by PFI, DSS, and DFI of ALDH2. (C) Kaplan–Meier survival curves by PFI, DSS, and DFI of ALDH18A1. (D) The relationship between clinicopathological characteristics and the expression of ALDH2.