A. S. MD, A.-Z., B. A., MD., A.-D., H. M., MD, A.-G., & Al-Zaazaai, M.Sc., A. A. (2020). The Severity and Extent of Coronary Artery Disease in Khat User Yemeni Patients. International Journal of Innovative Research in Medical Science, 5(09), 418–423. https://doi.org/10.23958/ijirms/vol05-i09/929