Hamad, shahab, Reiadh Al Kamali, and Handreen Ali. 2018. “The Normal Range of Mouth Opening in Kurdish Population and Its Correlation to Age, Sex, Height, and Weight”. Zanco Journal of Medical Sciences (Zanco J Med Sci) 14 (3), 41 - 46. https://zjms.hmu.edu.krd/index.php/zjms/article/view/474.