“DETERMINATION OF SERUM TRACE ELEMENTSMAGNESIUM, COPPER, ZINC, AND SELENIUM IN ASTHMATIC PATIENTS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY”, ANJS, vol. 13, no. 1, pp. 20–25, Mar. 2010, Accessed: May 21, 2024. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/1135