CEACAM5 and breast cancer: Zaleski et al. (2018) in the comparison of BC and healthy controls found that the combination of miR-34a (SN 36.2% and 34.0% at 90% and 95% SP, AUC = 0.722) with CEA or CA15-3 improved the performance with AUCs of 0.844 and 0.800 respectively.