In the testing set, all the four lncRNAs, including INHBA-AS1, MIR4435-2HG, CEBPA-AS1, and AK001058 were also increased in the plasma samples from GC patients (Figure 4A–4D), and the predictor was also remarkably stable, with AUCs of 0.752, 0.817, 0.819, and 0.820 for INHBA-AS1, MIR4435-2HG, CEBPA-AS1, and AK001058, respectively (Figure 4E). Here, CEBPA is linked to gastric cancer.