Ali, Abdulsahib K., et al. “Use of GADD45A and CDKN1A Gene Expression Changes As Biomarker in Assessment of DNA Damage for Ionizing Radiation Exposure”. Journal of Biotechnology Research Center, vol. 8, no. 4, Dec. 2014, pp. 5-14, doi:10.24126/jobrc.2014.8.4.368.