Al-Hussain, R.S. et al. 2014. Early detection of Breast Cancer by Tumor Marker CA15.3, CA27.29 and relationship with P53 and Vitamin D. Journal of Biotechnology Research Center. 8, 1 (Jan. 2014), 59–65. DOI:https://doi.org/10.24126/jobrc.2014.8.1.308.