Al-Assaf NA. DETERMINATION OF SERUM TRACE ELEMENTSMAGNESIUM, COPPER, ZINC, AND SELENIUM IN ASTHMATIC PATIENTS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY. Al-Nahrain J. Sci. [Internet]. 2010 Mar. 1 [cited 2026 May 22];13(1):20-5. Available from: https://anjs.edu.iq/index.php/anjs/article/view/1135