AFP and ovarian cancer: The normal concentration of AFP in saliva was 0.572 [0.530; 0.711] IU/mL, significant changes in AFP concentration were not shown both in benign ovarian pathologies (0.625 [0.541; 0.715] IU/mL) and in ovarian cancer (0.562 [0.519; 0.668] IU/mL).