EMAD-ALDIN I. OSMAN, ABDULLAH A. DAFALLAH, WALEED H. OMER, and GAMAL M. ELIMIRI. 2011. “Effect Of Cigarette Smoking On Blood Sodium And Potassium Levels In Sudanese Subjects”. International Journal of Pharma and Bio Sciences 2 (3):76-80. https://ijpbs.net/index.php/journal/article/view/935.