Al-Assaf, Nahla A. “DETERMINATION OF SERUM TRACE ELEMENTSMAGNESIUM, COPPER, ZINC, AND SELENIUM IN ASTHMATIC PATIENTS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY”. Al-Nahrain Journal of Science 13, no. 1 (March 1, 2010): 20–25. Accessed May 22, 2026. https://anjs.edu.iq/index.php/anjs/article/view/1135.