Capcarova, Marcela, A. Kolesarova, H. Arpasova, P. Massanyi, N. Lukac, J. Kovacik, A. Kalafova, and M. Schneidgenova. 2008. “Blood Biochemical Dynamics and Correlations in Laying Hens After Experimental Nickel Administration”. International Journal of Poultry Science 7 (6): 538–547. https://doi.org/10.3923/ijps.2008.538.547.