Czarnek, Katarzyna, and Andrzej K. Siwicki. “Influence of Chromium (III), Cobalt (II) and Their Mixtures on Cell Metabolic Activity”. Current Issues in Pharmacy and Medical Sciences, vol. 34, no. 2, June 2021, pp. 87-93, https://doi.org/10.2478/cipms-2021-0019.