Sara Khalafalla Abdalgader, Salman Taha Ahmed Elmukashfi, Abubakr Hassan Khougali, Rashid Eltayeb Abdalla. Effect of Cigarette Smoking on Trace Elements among Residents in Khartoum State, Sudan. GJMR [Internet]. 2020 Mar. 15 [cited 2024 Apr. 28];20(F4):13-8. Available from: https://medicalresearchjournal.org/index.php/GJMR/article/view/2028