Błoniarz, Jadwiga, and Stanisław Zaręba. “Evaluation of the Level of Chromium and Nickel in Selected Dietary Supplements (containing Antioxidant Compounds) Available in Poland”. Current Issues in Pharmacy and Medical Sciences 23, no. 4 (December 30, 2010): 51–58. Accessed September 5, 2025. https://czasopisma.umlub.pl/curipms/article/view/2943.