Among the three ABC transporters, high ABCB1 expression was associated with increased OS rates consistently across four different cancer types (HNSC, PAAD, SARC, SKCM) (Figure 4A); high ABCG2 expression was also correlated with increased OS rates in KIRC (Figure 4A), consistent with a recent report [40]. The gene discussed is ABCB1; the disease is cancer.