Barwari, W., A. Goreal, A. Salih, and N. N. Ibraheem. “Determination of Dyspepsia Causes in Patients Attending Endoscopy Dept. Of Azadi Teaching Hospital in Duhok City”. Zanco Journal of Medical Sciences (Zanco J Med Sci), vol. 14, no. 1 Special, Oct. 2018, pp. 121-6, https://zjms.hmu.edu.krd/index.php/zjms/article/view/528.