Younis AS, Khurshed KN, Abdullah AK. Determination of aortic valve efficiency through vortex physical parameters in normal, regurgitate, and stenotic valve by using Doppler-mode echocardiography. Zanco J Med Sci [Internet]. 2013 Aug. 1 [cited 2024 Apr. 26];17(2):443-9. Available from: https://zjms.hmu.edu.krd/index.php/zjms/article/view/360