In Figure 6A-D, we found that the protein levels of CUL4B were inversely correlated with FOXO3A (rs = −0.6066, P < 0.001, n = 126) in SCC (rs = −0.6996, P < 0.001, n = 65) and in SCLC (rs = −0.5126, P < 0.001, n = 61) tissues. Here, FOXO3 is linked to small cell lung carcinoma.