Saraymen, R., E. Kilic, S. Yazar, and B. Saraymen. “Magnesium, Copper, Zinc, Iron, and Chromium Levels in Sweat of Boxers”. Annals of Medical Research, vol. 10, no. 3, May 2021, pp. 0121-5, http://www.annalsmedres.org/index.php/aomr/article/view/2978.