AFP and ovarian cancer: While predicting ovarian cancer, AFP, Age, ALB, ALP, AST, CA125, CA19-9, CA72-4, CEA, GLO, HE4, IBIL, LYM#, LYM%, MCH, Na, NEU, PCT, PLT, TBIL, and TP were the key features selected using Boruta feature selection with a set of 20.