Abbas Shaker, Fatimaa, and Shaymaa Awad Kadhim Alshebly. “Physical Study of Nickel Serum Level in Blood Samples from Iraqi Populations”. Journal of Kufa-Physics, vol. 12, no. 01, Oct. 2020, pp. 9-14, doi:10.31257/2018/JKP/2020/120102.