ZNF660 and cancer: In ROC curve analysis, both ST6GALNAC3 and ZNF660 hypermethylation was highly cancer‐specific with AUCs ranging from 0.917 to 0.995 (ST6GALNAC3) and from 0.894 to 0.903 (ZNF660) in the three patient sets (Fig. 1E–J).