J. H. Taha, F. S. AL-Ani, and W. F. AL-Siaidy, “Protection Properties of He-Ne Laser (632.8 nm) Against UV-light (253.7 nm) On the Lymphocytes Blood Cellsand Its DNA”., J Fac Med Baghdad, vol. 54, no. 3, pp. 247–251, Oct. 2012, doi: 10.32007/jfacmedbagdad.543732.