Elewi, Ali Saad. “The Effect of Smoking on the Some Trace Elements and Cortisol Hormone Concentration in Serum”. Al Mustansiriyah Journal of Pharmaceutical Sciences 11, no. 1 (June 1, 2012): 32–46. Accessed May 6, 2024. https://ajps.uomustansiriyah.edu.iq/index.php/AJPS/article/view/236.