Błoniarz, J.; Zaręba, S. Determination of the Level of Chromium and Nickel in Selected Dietary Supplements Stimulating the Immune System of the Human Body. Curr. Issues Pharm. Med. Sci. 2012, 25 (1), 10-14. https://doi.org/10.12923/j.2084-980X/25.1/a.02.